A side/main split in which the main area can shrink and scroll. These classes belong to the opt-in Official preset. Add
@presets "standard,official"; to the CSS entry. Standard supplies the utilities, palette, and preflight
used alongside these structural shortcuts.
Classes
frame,frame-side,frame-main
Example
The markup below shows the structure. Follow the linked Storybook specimen for its complete styling and, where relevant, interactive behavior.
<div class="frame">
<aside class="frame-side" aria-label="Sections">Section links</aside>
<main class="frame-main">Long-form content</main>
</div>Variants and composition
frame-side reserves side width while frame-main takes the remaining room.
Either region can appear first in DOM order. Set --frame-offset at the
frame when a sticky header occupies viewport space; its default is 0px.
Behavior and accessibility
Keep meaningful DOM reading order even when the side region appears first visually. Wide main content should scroll inside frame-main rather than pushing the side away.
Reference
See the interactive Storybook specimen. Continue to Hero or return to the Official preset overview.