Bottom Tooltip With Arrow: Pure CSS Tooltip

Bottom Tooltip With Arrow

A light tooltip that drops in below an icon button, with a white fill, a hairline border and an arrow that keeps the outline. The arrow is a square with only two borders.

Also known as: tooltip below css, light tooltip css, white tooltip with border.

Color Base size 16px Dark background Hold hover state

HTML

<span class="tip-bottom-arrow">
  <button type="button" aria-label="Download" aria-describedby="tip-bottom-arrow-tip"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 4v11M7.5 10.5 12 15l4.5-4.5M5 19.5h14"/></svg></button>
  <span class="tip-bottom-arrow-tip" id="tip-bottom-arrow-tip" role="tooltip">Download PDF · 2.4 MB</span>
</span>

CSS

.tip-bottom-arrow {
  --c: var(--tip-color, #3b82f6);
  font-size: var(--tip-size, 16px);
  position: relative;
  display: inline-flex;
}
.tip-bottom-arrow button {
  display: grid;
  place-items: center;
  width: 2.6em;
  height: 2.6em;
  padding: 0;
  border: 1px solid color-mix(in srgb, var(--c) 40%, transparent);
  border-radius: 0.6em;
  background: color-mix(in srgb, var(--c) 10%, transparent);
  color: var(--c);
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.tip-bottom-arrow svg {
  width: 1.25em;
  height: 1.25em;
}
.tip-bottom-arrow:hover button { background: color-mix(in srgb, var(--c) 20%, transparent); }
.tip-bottom-arrow button:focus-visible {
  outline: 2px solid var(--c);
  outline-offset: 2px;
}
.tip-bottom-arrow-tip {
  position: absolute;
  top: calc(100% + 0.75em);
  left: 50%;
  z-index: 10;
  padding: 0.45em 0.75em;
  border: 1px solid rgb(15 23 42 / 0.14);
  border-radius: 0.45em;
  background: #fff;
  box-shadow: 0 0.6em 1.2em -0.5em rgb(15 23 42 / 0.35);
  color: #1e293b;
  font: 500 0.85em/1.3 system-ui, sans-serif;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, -0.4em);
  transition: opacity 0.18s ease, transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1), visibility 0.25s;
}
/* a square with only its top and left borders, turned 45deg, continues the outline */
.tip-bottom-arrow-tip::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  box-sizing: border-box;
  width: 0.7em;
  height: 0.7em;
  border: inherit;
  border-right: 0;
  border-bottom: 0;
  border-radius: 0.12em 0 0;
  background: inherit;
  transform: translate(-50%, 55%) rotate(45deg);
}
.tip-bottom-arrow:hover .tip-bottom-arrow-tip,
.tip-bottom-arrow:focus-within .tip-bottom-arrow-tip {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {
  .tip-bottom-arrow, .tip-bottom-arrow *, .tip-bottom-arrow::before, .tip-bottom-arrow::after, .tip-bottom-arrow *::before, .tip-bottom-arrow *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

Customizing this snippet

Color: set --tip-color on the element or a parent. Currently previewing #3b82f6.
Base size: set --tip-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 16px.
Speed: change the duration on the transition or animation shorthand. 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.

Bottom Tooltip With Arrow

HTML

CSS

Customizing this snippet

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