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visualize and debug css cascade layers skip to main content close menu devtools tips guides understanding devtools tips by category accessibility apps console css debug export frameworks help highlighter html javascript network perf personalization productivity testing webcomponents tips by browser chrome edge firefox polypane safari all tips open menu github repository mastodon social account visualize and debug css cascade layers categories css supported by chrome edge firefox safari polypane cascade layers is a css feature that allows web developers to define their css styles in multiple layers and control the order in which these layers apply cascade layers are meant to bring an elegant solution to problems we ve historically been fixing by using important or artificially making selectors have higher specificity to learn more about cascade layers check out miriam suzanne s complete guide on css tricks in this tip let s see how to visualize and debug layers in devtools all browser devtools have support for layers in their styles rules panels and some browsers have more advanced features all browsers open a page that uses cascade layers like this one inspect an element which has styles defined in one of the cascade layers like one of the green links in the above demo in the sidebar where css rules are displayed called styles or rules depending on the browser the rules are sorted by cascade layers with the highest priority layer at the top and lowest priority at the bottom rules that are part of a cascade layer have a layer layername label next to them chrome and edge only on top of the above chrome and edge have a layers view that shows the cascade layers in a list open a page that uses cascade layers like this one inspect an element which has styles defined in one of the cascade layers like one of the green links in the above demo click the toggle css layers view button in the styles panel toolbar next to the search field to reveal the list of layers polypane only polypane also has a css layers view that shows the cascade layers in a list open a page that uses cascade layers like this one inspect an element which has styles defined in one of the cascade layers like one of the green links in the above demo click css layers in the elements panel to reveal the list of layers the layers that are not dimmed in the list apply to the currently selected element see also display the specificity of a css selector find inactive css styles highlight all elements on the page that match a given css selector copy an elements styles authors patrick brosset kilian valkhof last edit 4 20 2022 edit this page