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Add a wave propagation ripple effect to the website navbar #4150

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Merged
Keavon merged 3 commits into from
Jun 9, 2026
Merged

Add a wave propagation ripple effect to the website navbar #4150

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0c2892c
WIP: Website navbar ripple
Keavon May 4, 2026
9ec1103
Fix performance and other bugs
Keavon Jun 9, 2026
fdb86e8
Make the navbar ripple's active button explicitly inert
Keavon Jun 9, 2026
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37 changes: 24 additions & 13 deletions website/sass/base.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -227,23 +227,34 @@ body > .page {
.ripple {
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display: block;
background: none;
// Covers up content that extends up underneath the header
fill: white;
stroke: currentColor;
--ripple-height: 16px;
// Total SVG height splits into space above the baseline (for raised bumps and wave crests) and space below (for wave troughs that dip into the page body)
--ripple-height: 32px;
--ripple-baseline-from-top: 16px;
--ripple-taper-half-width: 40px;
height: var(--ripple-height);
margin-top: calc(-1 * var(--ripple-height) + var(--border-thickness));
margin-bottom: calc(-1 * var(--border-thickness));
stroke-width: var(--border-thickness);
margin-top: calc(-1 * var(--ripple-baseline-from-top) + var(--border-thickness));
margin-bottom: calc(-1 * (var(--ripple-height) - var(--ripple-baseline-from-top)) - var(--border-thickness));
// Allow taper polygons (apex at +/- 40px) and wave crests/troughs to spill outside the SVG box; the path's off-screen fill corners are still drawn within bounds since the line/mask are split
overflow: visible;
clip-path: inset(-100px calc(-1 * var(--ripple-taper-half-width)) -100px calc(-1 * var(--ripple-taper-half-width)));
pointer-events: none;

.ripple-mask {
// Covers up content that extends up underneath the header
fill: white;
stroke: none;
}

&::before,
&::after {
content: none;
.ripple-line {
fill: none;
stroke: currentColor;
stroke-width: var(--border-thickness);
}
}

hr {
background: none;
polygon {
fill: currentColor;
stroke: none;
}
}

@media screen and (max-width: 1400px) {
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