Controls are a subset of UI components that facilitate interaction within the application, i.e., Secondary Buttons, Button Groups and the Search Field. Control borders are used to outline these components and are not intended for use as separators.
Example
Search Field
Constants
On White
$mds-border-control-on-all-backgrounds
solid 1px #808080
On Light Gray
$mds-border-control-on-all-backgrounds
solid 1px #808080
On Dark Gray
$mds-border-control-on-all-backgrounds
solid 1px #808080
On Black
$mds-border-control-on-all-backgrounds
solid 1px #808080
Containers
Container borders create contrast between a layered component – such as a Popover or Dialog – and the background canvas on which it is layered.
Example
Dialog
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Constants
Layered components – Dialog, Modal, Notifications, and Popover – only use containers with white backgrounds. Therefore, layered components only have one border variable that works across all backgrounds.
On White
$mds-border-container-on-all-backgrounds
solid 1px #cccccc
On Light Gray
$mds-border-container-on-all-backgrounds
solid 1px #cccccc
On Dark Gray
$mds-border-container-on-all-backgrounds
solid 1px #cccccc
On Black
$mds-border-container-on-all-backgrounds
solid 1px #cccccc
Headers
Header borders establish a clear hierarchy of content on a page by offering three variations: Primary, Secondary, and Tertiary. Use these variations to create a legible visual architecture which clearly communicates the organization of information.