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29 lines
768 B
SCSS
29 lines
768 B
SCSS
body { margin: 0 }
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// by default keep page at the top of the screen
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:root { --header-height: 0px }
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// offset page giving room for header when it's present
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:root:has(header + #page) { --header-height: 3rem }
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#page {
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position: fixed;
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top: var(--header-height);
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width: 100vw;
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max-width: 100vw;
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// fill vertically exactly to remaining screen size (since we
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--root-size: calc(100svh - var(--header-height));
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max-height: var(--root-size);
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min-height: var(--root-size);
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// center contents
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display: flex;
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flex-direction: column;
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& > * { align-self: center; margin: auto; }
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}
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// only show scrollbar when needed & make header hide stuff under it
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body { overflow-y: overlay; }
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#page {
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overflow: scroll;
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overflow-x: hidden;
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overflow-y: overlay;
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}
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