![]() ![]() Extend lines infinitely ¶īy default, the grid lines/tracks are only shown inside the element with display: grid set on it. Unchecking the “Display area names” box turns them off. In a grid with named areas, the area names are shown on the grid overlay by default. Unchecking the “Display line numbers” box turns them off. Display line numbers ¶īy default, the line numbers are displayed on the grid overlay. When you select the checkbox for the subgrid, the lines for the parent grid are displayed also displayed if the checkbox for the parent grid is unselected, then its lines are translucent. When the page contains a grid with a subgrid, the entry for the subgrid is indented under its parent in the Overlay grid section. This is useful for selecting different colors so you can easily tell your grids apart. Clicking this also toggles the grid overlay on and off.Ī target icon that when clicked immediately selects the HTML element that this grid entry relates to, inside the HTML pane.Ī color picker icon that allows you to change the primary color of the grid overlay. Overlay grid ¶Įach grid present on a page has an entry in the “Overlay grid” section:Įach entry consists of (from left to right):Ī checkbox allowing you to toggle the grid overlay for that grid on and off.Ī name label to represent the grid, consisting of a selector identifying the HTML element that has the grid applied to it. Let’s examine these features in more detail. Your grid preferences such as overlay color and display settings choices are persisted across page loads for each separate page. You can find out more about those in the section below. ![]() When grids are included on a page, the CSS pane’s Layout view includes a “Grid” section containing a number of options for viewing those Grids. The overlay is still shown when you select other elements, so you can edit related CSS properties and see how the grid is affected. Ĭlicking the icon toggles the display of a grid overlay on the page, which appears over the element, laid out like a grid to show the position of its grid lines and tracks: In the CSS pane’s Rules view, any instance of a display: grid declaration gets a grid icon included within it. In the HTML Pane, elements laid out using a grid have a “grid” marker beside them. When an HTML element on your page has display: grid applied to it, a number of features are made available in the DevTools to provide easy access to grid features. The examples shown in the screenshots appearing in this article are Jen Simmons’ Futurismo and Variations on a grid experiments, and a live named grid area example from Rachel Andrew. Turning on Firefox tests for a new configuration.Getting Set Up To Work On The Firefox Codebase. ![]()
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