Side Tooltip Hover Effect
A vertical toolbar whose labels unroll to the right of each icon on hover. The label is wiped in with clip-path from the icon's edge, so it reads as coming out of the button.
Also known as: tooltip on the right css, sidebar icon tooltip, slide out label on hover.
HTML
<nav class="hfx-tooltip-side-slide" aria-label="Toolbar"> <a href="#" aria-label="Home" data-tip="Home"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 10.5 12 4l8 6.5V19a1.5 1.5 0 0 1-1.5 1.5H15v-6H9v6H5.5A1.5 1.5 0 0 1 4 19z"/></svg></a> <a href="#" aria-label="Search" data-tip="Search"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><circle cx="11" cy="11" r="6.5"/><path d="m20 20-4.2-4.2"/></svg></a> <a href="#" aria-label="Notifications" data-tip="Notifications"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M6 8.5a6 6 0 0 1 12 0c0 6.5 2.5 8 2.5 8h-17S6 15 6 8.5"/><path d="M10.3 20a2 2 0 0 0 3.4 0"/></svg></a> </nav>
CSS
.hfx-tooltip-side-slide {
--c: var(--hfx-color, #3b82f6);
font-size: var(--hfx-size, 16px);
display: flex;
flex-direction: column;
gap: 0.3em;
margin-right: 7em; /* room for the labels in this preview */
padding: 0.4em;
border: 1px solid color-mix(in srgb, var(--c) 22%, transparent);
border-radius: 0.9em;
background: color-mix(in srgb, var(--c) 7%, transparent);
font-family: system-ui, sans-serif;
}
.hfx-tooltip-side-slide a {
position: relative;
display: grid;
place-items: center;
width: 2.5em;
height: 2.5em;
border-radius: 0.6em;
color: color-mix(in srgb, currentColor 70%, transparent);
transition: background-color 0.2s ease, color 0.2s ease;
}
.hfx-tooltip-side-slide svg { width: 1.2em; height: 1.2em; }
.hfx-tooltip-side-slide a::after {
content: attr(data-tip);
position: absolute;
left: calc(100% + 0.9em);
top: 50%;
padding: 0.4em 0.75em;
border-radius: 0.45em;
background: var(--c);
color: #fff;
font-size: 0.8em;
font-weight: 600;
white-space: nowrap;
pointer-events: none;
clip-path: inset(0 100% 0 0 round 0.45em);
transform: translate(-0.5em, -50%);
transition: clip-path 0.3s cubic-bezier(0.65, 0, 0.35, 1), transform 0.3s cubic-bezier(0.3, 0.7, 0.4, 1);
}
.hfx-tooltip-side-slide a::before {
content: "";
position: absolute;
left: calc(100% + 0.5em);
top: 50%;
border: 0.35em solid transparent;
border-right-color: var(--c);
opacity: 0;
transform: translate(-0.4em, -50%);
transition: opacity 0.2s ease, transform 0.3s cubic-bezier(0.3, 0.7, 0.4, 1);
}
.hfx-tooltip-side-slide a:is(:hover, :focus-visible) {
background: color-mix(in srgb, var(--c) 15%, transparent);
color: var(--c);
}
.hfx-tooltip-side-slide a:is(:hover, :focus-visible)::after {
clip-path: inset(0 0 0 0 round 0.45em);
transform: translate(0, -50%);
}
.hfx-tooltip-side-slide a:is(:hover, :focus-visible)::before {
opacity: 1;
transform: translate(0, -50%);
}
@media (prefers-reduced-motion: reduce) {
.hfx-tooltip-side-slide, .hfx-tooltip-side-slide *, .hfx-tooltip-side-slide::before, .hfx-tooltip-side-slide::after, .hfx-tooltip-side-slide *::before, .hfx-tooltip-side-slide *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--hfx-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--hfx-size. Every other dimension is inem, so the whole thing scales together. Currently previewing16px. - Speed: change the duration on the
transitionoranimationshorthand. Staggered delays are relative, so they keep their rhythm. - Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.