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Discover new workflows in the following comprehensive reference of Microsoft Edge DevTools features related to viewing and changing CSS.

To learn the basics, navigate to Get Started with Viewing and Changing CSS.

Chromium is an open-source codebase that can be compiled into a web browser.It has always been a Google project. Google uses the code to make its Chrome browser, which has additional features. The Chromium codebase is widely used. Microsoft Edge, Opera, and many other browsers are based on the code.Other parties compile it and release browsers with the Chromium name and logo. Force print preview mode. Navigate to Force DevTools into Print Preview mode. Change CSS Add a CSS declaration to an element. The order of declarations affects how an element is styled, use the following list to help you add declarations in different ways. A number of experiments have been conducted in order to examine the possibilities and limitations of a screening test method based on visual colorimetric determination. The experiments, which are described in further detail in Annex 2, examine the sensitivity of the method in relation to different test materials.

Choose an element

The Elements tool of DevTools lets you view or change the CSS of one element at a time. The selected element is highlighted in the DOM Tree. The styles of the element are shown in the Styles pane. For a tutorial, navigate to View the CSS for an element.

Note

In the following figure, the h1 element that is highlighted in the DOM Tree is the selected element. On the right, the styles of the element are shown in the Styles pane. On the left, the element is highlighted in the viewport, but only because the mouse is currently hovering over it in the DOM Tree.

Use one the following actions to select an element.

  • In your viewport, hover on the element, open the contextual menu (right-click), and choose Inspect.
  • In DevTools, choose Select an element () or select Control+Shift+C (Windows, Linux) or Command+Shift+C (macOS), and then choose the element in the viewport.
  • In DevTools, choose the element in the DOM Tree.
  • In DevTools, run a query like document.querySelector('p') in the Console, hover on the result, open the contextual menu (right-click), and choose Reveal in Elements panel.

View CSS

View the external stylesheet where a rule is defined

In the Styles pane, choose the link next to a CSS rule to open the external stylesheet that defines the rule. The stylesheet opens in the Editor pane of the Sources tool.

If the stylesheet is minified, choose the Format () button, at the bottom of the Editor pane. For more information, navigate to Reformat a minified JavaScript file with pretty-print.

Note

In the following figure, after you choose https://docs.microsoft.com/_themes/docs.theme/master/en-us/_themes/styles/b66bc881.site-ltr.css:2 you are taken to line 2 of https://docs.microsoft.com/_themes/docs.theme/master/en-us/_themes/styles/b66bc881.site-ltr.css, where the .content h1:first-of-type CSS rule is defined.

View only the CSS that is actually applied to an element

The Styles panel shows you all of the rules that apply to an element, including declarations that have been overridden. When you are not interested in overridden declarations, use the Computed panel to view only the CSS that is actually being applied to an element.

  1. Select an element.
  2. Navigate to the Computed panel in the Elements tool.

Note

On a wide DevTools window, the Computed panel does not exist. The contents of the Computed panel are shown on the Styles panel.

Inherited properties are opaque. To display all inherited values, select the Show All checkbox.

Note

In the following figure, the Computed panel shows the CSS properties being applied to the currently-selected h1 element.

View CSS properties in alphabetical order

Use the Computed panel. Navigate to View only the CSS that is actually applied to an element.

View inherited CSS properties

Chromium

Check the Show All checkbox in the Computed panel. Navigate to View only the CSS that is actually applied to an element.

View the box model for an element

To view the box model of an element, navigate to the Styles panel. If your DevTools window is narrow, the Box Model diagram is at the bottom of the panel.

Choose and edit on a value to change a value.

Note

In the following figure, the Box Model diagram in the Styles panel shows the box model for the currently selected h1 element.

Search and filter the CSS of an element

Use the Filter text box on the Styles and Computed panels to search for specific CSS properties or values.

To also search inherited properties in the Computed panel, check the Show All checkbox.

Note

In the following figure, the Styles panel is filtered to only show rules that include the search query color.

Note

In the following figure, the Computed panel is filtered to only show declarations that include the search query 100%.

Toggle a pseudo-class

Complete the following actions to toggle a pseudo-class like :active, :focus, :hover, or :visited.

  1. Select an element.
  2. On the Elements tool, navigate to the Styles panel.
  3. Choose :hov.
  4. Check the pseudo-class that you want to enable.

Note

In the following figure, toggle the :hover pseudo-class. In the viewport verify that the background-color: cornflowerblue declaration is being applied to the element, even though the element is not actually being hovered over.

For an interactive tutorial, navigate to Add a pseudostate to a class.

View a page in print mode

Examples

Complete the following actions to view a page in print mode.

  1. Open the Command Menu.
  2. Start typing Rendering and select Show Rendering.
  3. For the Emulate CSS Media dropdown, choose print.

View used and unused CSS with the Coverage tool

The Coverage tool shows you what CSS a page actually uses.

  1. Select Control+Shift+P (Windows, Linux) or Command+Shift+P (macOS) while DevTools is in focus to open the Command Menu.

  2. Start typing coverage and choose Show Coverage. The Coverage tool appears.

  3. Choose Start instrumenting coverage and refresh the page (). The page refreshes and the Coverage tool provides an overview of how much CSS (and JavaScript) is used from each file that the browser loads. Green represents used CSS. Red represents unused CSS.

  4. To display a line-by-line breakdown of what CSS is used, choose a CSS file.

    Note

    In the following figure, lines 145 to 147 and 149 to 151 of b66bc881.site-ltr.css are unused, whereas lines 163 to 166 are used.

Force print preview mode

Navigate to Force DevTools into Print Preview mode.

Change CSS

Add a CSS declaration to an element

The order of declarations affects how an element is styled, use the following list to help you add declarations in different ways.

  • Add a inline declaration. Equivalent to adding a style attribute to the HTML of an element.
  • Add a declaration to a style rule.

What workflow should you use? For most scenarios, you probably want to use the inline declaration workflow. Inline declarations have higher specificity than external ones, so the inline workflow ensures that the changes take effect in your expected element. For more information about specificity, navigate to Selector Types.

If you are debugging any styles of the element and you need to specifically test what happens when a declaration is defined in different places, use the other workflow.

Add an inline declaration

Complete the following actions to add an inline declaration.

Chromium Examined

  1. Select an element.
  2. In the Styles pane, choose between the brackets of the element.style section. The cursor focuses, allowing you to enter text.
  3. Enter a property name and select Enter.
  4. Enter a valid value for that property and select Enter. In the DOM Tree, verify that a style attribute has been added to the element.

Note

In the following figure, the margin-top and background-color properties have been applied to the selected element. In the DOM Tree verify that the declarations are reflected in the style attribute for an element.

Add a declaration to a style rule

Complete the following actions to add a declaration to an existing style rule.

  1. Select an element.
  2. In the Styles pane, choose between the brackets of the style rule to which you want to add the declaration. The cursor focuses, allowing you to enter text.
  3. Enter a property name and select Enter.
  4. Enter a valid value for that property and select Enter.

Change a declaration name or value

Choose and edit the name or value of a declaration to change it. For shortcuts for quickly incrementing or decrementing a value by 0.1, 1, 10, or 100 units, navigate to Change declaration values with keyboard shortcuts.

Change declaration values with keyboard shortcuts

While editing the value of a declaration, you may use the following keyboard shortcuts to increment the value by a specific amount.

  • Select Alt+Up (Windows, Linux) or Option+Up (macOS) to increment by 0.1.
  • Select Up to change the value by 1, or by 0.1 if the current value is between -1 and 1.
  • Select Shift+Up to increment by 10.
  • Select Shift+Page Up (Windows, Linux) or Shift+Command+Up (macOS) to increment the value by 100.

Decrementing also works. Just replace each instance of Up mentioned above with Down.

Add a class to an element

Complete the following actions to add a class to an element.

  1. Select the element in the DOM Tree.
  2. Choose .cls.
  3. Enter the name of the class in the Add New Class text box.
  4. Select Enter.

Toggle a class

Complete the following actions to enable or disable a class on an element.

  1. Select the element in the DOM Tree.
  2. Open the Element Classes pane. Navigate to Add a class to an element. Below the Add New Class text box are all of the classes applied to the specific element.
  3. Toggle the checkbox next to the class that you want to turn on or off.

Add a style rule

Complete the following actions to add a new style rule.

  1. Select an element.
  2. Choose New Style Rule (). DevTools inserts a new rule beneath the element.style rule.

Note

In the following figure, DevTools adds the h1.devsite-page-title style rule after you choose New Style Rule.

Choose which stylesheet to add a rule to

Examine

When adding a new style rule, choose and hold New Style Rule () to choose which stylesheet to add the style rule to.

Add a style rule to a specific location

Complete the following actions to add a style rule to a specific location in the Styles panel.

  1. Hover on the style rule that is directly above where you want to add your new style rule.
  2. Reveal the More Actions toolbar.
  3. Choose Insert Style Rule Below ().

Reveal the More Actions toolbar

The More Actions toolbar lets you perform the following actions.

  • Insert a style rule directly below the one you are focused on.
  • Add a background-color, color, box-shadow, or text-shadow declaration to the style rule you are focused on.

Complete the following actions to reveal the More Actions toolbar.

  1. In the Styles panel, hover on a style rule. More Actions (...) is revealed in the bottom-right of the style rule section.

    Note

    In the following figure, hover on the .header-holder.has-default-focus style rule and More Actions is revealed in the bottom-right of the style rule section.

  2. Hover on More Actions (...) to reveal the actions mentioned above.

    Note

    The Insert Style Rule Below action is revealed after hovering over More Actions.

Toggle a declaration

Complete the folllwoing actions to toggle a single declaration on (or off).

  1. Select an element.
  2. In the Styles pane, hover on the rule that defines the declaration. A checkbox appears next to each declaration.
  3. Check (or uncheck) the checkbox next to the declaration. When you uncheck a declaration, DevTools crosses it out to indicate that it is no longer active.

Note

In the following figure, the margin-top property for the currently selected element has been toggled off.

Add a background-color declaration

Complete the following actions to add a background-color declaration to an element.

  1. Hover on the style rule that you want to add the background-color declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Background Color ().

Add a color declaration

Complete the following actions to add a color declaration to an element.

  1. Hover on the style rule that you want to add the color declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Color ().

Add a box-shadow declaration

Complete the follwoing actions to add a box-shadow declaration to an element.

  1. Hover on the style rule that you want to add the box-shadow declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Box Shadow ().

Add a text-shadow declaration

Complete the following actions to add a text-shadow declaration to an element.

  1. Hover on the style rule that you want to add the text-shadow declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Text Shadow ().

Change colors with the Color Picker

The Color Picker provides a GUI for changing color and background-color declarations.

Complete the following actions to open the Color Picker.

  1. Select an element.

  2. In the Styles panel, find the color, background-color, or similar declaration that you want to change. To the left of the color, background-color, or similar value, there is a small square which is a preview of the color.

    Note

    In the following figure, the small square to the left of rgba(0, 0, 0, 0.7) is a preview of that color.

  3. Choose the preview to open the Color Picker.

The following figure and list descries of each of the UI elements of the Color Picker.

1

Eyedropper

For more information, navigate to Sample a color off the page with the Eyedropper.

Copy To Clipboard

4

The RGBA, HSLA, or Hex representation of the color.

Color Palette

Choose one of the squares to change the color to that square.

Hue

7

Display Value Switcher

Toggle between the RGBA, HSLA, and Hex representations of the current color.

Color Palette Switcher

Toggle between the Material Design palette, a custom palette, or a page colors palette. DevTools generates the page color palette based on the colors that it finds in your stylesheets.

Sample a color off the page with the Eyedropper

When you open the Color Picker, the Eyedropper () is on by default. Complete the following actions to change the selected color to some other color on the page.

  1. Hover on the target color in the viewport.

  2. Choose to confirm.

    Note

    In the following figure, the Color Picker shows a current color value of rgba(0,0,0,0.7), which is close to black. The specific color should change to the version of black that is currently highlighted in the viewport after you chose it.

Getting in touch with the Microsoft Edge DevTools team

Use the following options to discuss the new features and changes in the post, or anything else related to DevTools.

  • Send your feedback using the Send Feedback icon or select Alt+Shift+I (Windows, Linux) or Option+Shift+I (macOS) in DevTools.
  • Tweet at @EdgeDevTools.
  • Submit a suggestion to The Web We Want.
  • To file bugs about this article, use the following Feedback section.

Note

Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons Attribution 4.0 International License.
The original page is found here and is authored by Kayce Basques (Technical Writer, Chrome DevTools & Lighthouse).


This work is licensed under a Creative Commons Attribution 4.0 International License.

-->

Discover new workflows in the following comprehensive reference of Microsoft Edge DevTools features related to viewing and changing CSS.

To learn the basics, navigate to Get Started with Viewing and Changing CSS.

Choose an element

The Elements tool of DevTools lets you view or change the CSS of one element at a time. The selected element is highlighted in the DOM Tree. The styles of the element are shown in the Styles pane. For a tutorial, navigate to View the CSS for an element.

Note

In the following figure, the h1 element that is highlighted in the DOM Tree is the selected element. On the right, the styles of the element are shown in the Styles pane. On the left, the element is highlighted in the viewport, but only because the mouse is currently hovering over it in the DOM Tree.

Use one the following actions to select an element.

  • In your viewport, hover on the element, open the contextual menu (right-click), and choose Inspect.
  • In DevTools, choose Select an element () or select Control+Shift+C (Windows, Linux) or Command+Shift+C (macOS), and then choose the element in the viewport.
  • In DevTools, choose the element in the DOM Tree.
  • In DevTools, run a query like document.querySelector('p') in the Console, hover on the result, open the contextual menu (right-click), and choose Reveal in Elements panel.

View CSS

View the external stylesheet where a rule is defined

In the Styles pane, choose the link next to a CSS rule to open the external stylesheet that defines the rule. The stylesheet opens in the Editor pane of the Sources tool.

If the stylesheet is minified, choose the Format () button, at the bottom of the Editor pane. For more information, navigate to Reformat a minified JavaScript file with pretty-print.

Note

In the following figure, after you choose https://docs.microsoft.com/_themes/docs.theme/master/en-us/_themes/styles/b66bc881.site-ltr.css:2 you are taken to line 2 of https://docs.microsoft.com/_themes/docs.theme/master/en-us/_themes/styles/b66bc881.site-ltr.css, where the .content h1:first-of-type CSS rule is defined.

View only the CSS that is actually applied to an element

The Styles panel shows you all of the rules that apply to an element, including declarations that have been overridden. When you are not interested in overridden declarations, use the Computed panel to view only the CSS that is actually being applied to an element.

  1. Select an element.
  2. Navigate to the Computed panel in the Elements tool.

Note

On a wide DevTools window, the Computed panel does not exist. The contents of the Computed panel are shown on the Styles panel.

Chromium Examiners

Inherited properties are opaque. To display all inherited values, select the Show All checkbox.

Note

Chromium Examine

In the following figure, the Computed panel shows the CSS properties being applied to the currently-selected h1 element.

View CSS properties in alphabetical order

Use the Computed panel. Navigate to View only the CSS that is actually applied to an element.

View inherited CSS properties

Check the Show All checkbox in the Computed panel. Navigate to View only the CSS that is actually applied to an element.

View the box model for an element

To view the box model of an element, navigate to the Styles panel. If your DevTools window is narrow, the Box Model diagram is at the bottom of the panel.

Choose and edit on a value to change a value.

Note

In the following figure, the Box Model diagram in the Styles panel shows the box model for the currently selected h1 element.

Search and filter the CSS of an element

Use the Filter text box on the Styles and Computed panels to search for specific CSS properties or values.

To also search inherited properties in the Computed panel, check the Show All checkbox.

Note

Chromium Examine

In the following figure, the Styles panel is filtered to only show rules that include the search query color.

Note

In the following figure, the Computed panel is filtered to only show declarations that include the search query 100%.

Toggle a pseudo-class

Complete the following actions to toggle a pseudo-class like :active, :focus, :hover, or :visited.

  1. Select an element.
  2. On the Elements tool, navigate to the Styles panel.
  3. Choose :hov.
  4. Check the pseudo-class that you want to enable.

Note

In the following figure, toggle the :hover pseudo-class. In the viewport verify that the background-color: cornflowerblue declaration is being applied to the element, even though the element is not actually being hovered over.

For an interactive tutorial, navigate to Add a pseudostate to a class.

View a page in print mode

Complete the following actions to view a page in print mode.

  1. Open the Command Menu.
  2. Start typing Rendering and select Show Rendering.
  3. For the Emulate CSS Media dropdown, choose print.

View used and unused CSS with the Coverage tool

The Coverage tool shows you what CSS a page actually uses.

  1. Select Control+Shift+P (Windows, Linux) or Command+Shift+P (macOS) while DevTools is in focus to open the Command Menu.

  2. Start typing coverage and choose Show Coverage. The Coverage tool appears.

  3. Choose Start instrumenting coverage and refresh the page (). The page refreshes and the Coverage tool provides an overview of how much CSS (and JavaScript) is used from each file that the browser loads. Green represents used CSS. Red represents unused CSS.

  4. To display a line-by-line breakdown of what CSS is used, choose a CSS file.

    Note

    In the following figure, lines 145 to 147 and 149 to 151 of b66bc881.site-ltr.css are unused, whereas lines 163 to 166 are used.

Force print preview mode

Navigate to Force DevTools into Print Preview mode.

Change CSS

Add a CSS declaration to an element

The order of declarations affects how an element is styled, use the following list to help you add declarations in different ways.

  • Add a inline declaration. Equivalent to adding a style attribute to the HTML of an element.
  • Add a declaration to a style rule.

What workflow should you use? For most scenarios, you probably want to use the inline declaration workflow. Inline declarations have higher specificity than external ones, so the inline workflow ensures that the changes take effect in your expected element. For more information about specificity, navigate to Selector Types.

If you are debugging any styles of the element and you need to specifically test what happens when a declaration is defined in different places, use the other workflow.

Add an inline declaration

Complete the following actions to add an inline declaration.

  1. Select an element.
  2. In the Styles pane, choose between the brackets of the element.style section. The cursor focuses, allowing you to enter text.
  3. Enter a property name and select Enter.
  4. Enter a valid value for that property and select Enter. In the DOM Tree, verify that a style attribute has been added to the element.

Note

In the following figure, the margin-top and background-color properties have been applied to the selected element. In the DOM Tree verify that the declarations are reflected in the style attribute for an element.

Add a declaration to a style rule

Complete the following actions to add a declaration to an existing style rule.

Chromium Examine
  1. Select an element.
  2. In the Styles pane, choose between the brackets of the style rule to which you want to add the declaration. The cursor focuses, allowing you to enter text.
  3. Enter a property name and select Enter.
  4. Enter a valid value for that property and select Enter.

Change a declaration name or value

Choose and edit the name or value of a declaration to change it. For shortcuts for quickly incrementing or decrementing a value by 0.1, 1, 10, or 100 units, navigate to Change declaration values with keyboard shortcuts.

Change declaration values with keyboard shortcuts

While editing the value of a declaration, you may use the following keyboard shortcuts to increment the value by a specific amount.

  • Select Alt+Up (Windows, Linux) or Option+Up (macOS) to increment by 0.1.
  • Select Up to change the value by 1, or by 0.1 if the current value is between -1 and 1.
  • Select Shift+Up to increment by 10.
  • Select Shift+Page Up (Windows, Linux) or Shift+Command+Up (macOS) to increment the value by 100.

Decrementing also works. Just replace each instance of Up mentioned above with Down.

Add a class to an element

Complete the following actions to add a class to an element.

  1. Select the element in the DOM Tree.
  2. Choose .cls.
  3. Enter the name of the class in the Add New Class text box.
  4. Select Enter.

Toggle a class

Complete the following actions to enable or disable a class on an element.

  1. Select the element in the DOM Tree.
  2. Open the Element Classes pane. Navigate to Add a class to an element. Below the Add New Class text box are all of the classes applied to the specific element.
  3. Toggle the checkbox next to the class that you want to turn on or off.

Add a style rule

Complete the following actions to add a new style rule.

  1. Select an element.
  2. Choose New Style Rule (). DevTools inserts a new rule beneath the element.style rule.

Note

In the following figure, DevTools adds the h1.devsite-page-title style rule after you choose New Style Rule.

Choose which stylesheet to add a rule to

When adding a new style rule, choose and hold New Style Rule () to choose which stylesheet to add the style rule to.

Add a style rule to a specific location

Complete the following actions to add a style rule to a specific location in the Styles panel.

  1. Hover on the style rule that is directly above where you want to add your new style rule.
  2. Reveal the More Actions toolbar.
  3. Choose Insert Style Rule Below ().

Reveal the More Actions toolbar

The More Actions toolbar lets you perform the following actions.

  • Insert a style rule directly below the one you are focused on.
  • Add a background-color, color, box-shadow, or text-shadow declaration to the style rule you are focused on.

Complete the following actions to reveal the More Actions toolbar.

  1. In the Styles panel, hover on a style rule. More Actions (...) is revealed in the bottom-right of the style rule section.

    Note

    In the following figure, hover on the .header-holder.has-default-focus style rule and More Actions is revealed in the bottom-right of the style rule section.

  2. Hover on More Actions (...) to reveal the actions mentioned above.

    Note

    The Insert Style Rule Below action is revealed after hovering over More Actions.

Toggle a declaration

Complete the folllwoing actions to toggle a single declaration on (or off).

  1. Select an element.
  2. In the Styles pane, hover on the rule that defines the declaration. A checkbox appears next to each declaration.
  3. Check (or uncheck) the checkbox next to the declaration. When you uncheck a declaration, DevTools crosses it out to indicate that it is no longer active.

Note

In the following figure, the margin-top property for the currently selected element has been toggled off.

Add a background-color declaration

Complete the following actions to add a background-color declaration to an element.

  1. Hover on the style rule that you want to add the background-color declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Background Color ().

Add a color declaration

Complete the following actions to add a color declaration to an element.

  1. Hover on the style rule that you want to add the color declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Color ().

Add a box-shadow declaration

Complete the follwoing actions to add a box-shadow declaration to an element.

  1. Hover on the style rule that you want to add the box-shadow declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Box Shadow ().

Add a text-shadow declaration

Complete the following actions to add a text-shadow declaration to an element.

Chromium Examiner

  1. Hover on the style rule that you want to add the text-shadow declaration to.
  2. Reveal the More Actions toolbar.
  3. Choose Add Text Shadow ().

Change colors with the Color Picker

The Color Picker provides a GUI for changing color and background-color declarations.

Complete the following actions to open the Color Picker.

  1. Select an element.

  2. In the Styles panel, find the color, background-color, or similar declaration that you want to change. To the left of the color, background-color, or similar value, there is a small square which is a preview of the color.

    Note

    In the following figure, the small square to the left of rgba(0, 0, 0, 0.7) is a preview of that color.

  3. Choose the preview to open the Color Picker.

The following figure and list descries of each of the UI elements of the Color Picker.

1

Eyedropper

For more information, navigate to Sample a color off the page with the Eyedropper.

Copy To Clipboard

4

The RGBA, HSLA, or Hex representation of the color.

Color Palette

Chromium Examples

Choose one of the squares to change the color to that square.

Hue

7

Display Value Switcher

Toggle between the RGBA, HSLA, and Hex representations of the current color.

Color Palette Switcher

Toggle between the Material Design palette, a custom palette, or a page colors palette. DevTools generates the page color palette based on the colors that it finds in your stylesheets.

Sample a color off the page with the Eyedropper

When you open the Color Picker, the Eyedropper () is on by default. Complete the following actions to change the selected color to some other color on the page.

  1. Hover on the target color in the viewport.

  2. Choose to confirm.

    Note

    In the following figure, the Color Picker shows a current color value of rgba(0,0,0,0.7), which is close to black. The specific color should change to the version of black that is currently highlighted in the viewport after you chose it.

Getting in touch with the Microsoft Edge DevTools team

Use the following options to discuss the new features and changes in the post, or anything else related to DevTools.

  • Send your feedback using the Send Feedback icon or select Alt+Shift+I (Windows, Linux) or Option+Shift+I (macOS) in DevTools.
  • Tweet at @EdgeDevTools.
  • Submit a suggestion to The Web We Want.
  • To file bugs about this article, use the following Feedback section.

Note

Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons Attribution 4.0 International License.
The original page is found here and is authored by Kayce Basques (Technical Writer, Chrome DevTools & Lighthouse).


This work is licensed under a Creative Commons Attribution 4.0 International License.