Bookmark Button
A 'Save' button with a ribbon tucked into its top edge. Click and the ribbon drops down past the bottom like a real bookmark, swings once and settles. The notch is a clip-path polygon.
Also known as: save button animation css, bookmark toggle button, ribbon bookmark button.
HTML
<label class="btn-bookmark">
<input class="btn-bookmark-input" type="checkbox" aria-label="Save">
<span class="btn-bookmark-face" aria-hidden="true">
<span class="btn-bookmark-text"><span>Save</span><span>Saved</span></span>
<span class="btn-bookmark-ribbon"></span>
</span>
</label>CSS
.btn-bookmark {
--c: var(--btn-color, #3b82f6);
position: relative;
display: inline-grid;
place-items: center;
font: 600 var(--btn-size, 18px)/1.1 system-ui, sans-serif;
cursor: pointer;
user-select: none;
-webkit-tap-highlight-color: transparent;
}
.btn-bookmark-input {
position: absolute;
inset: 0;
z-index: 1;
width: 100%;
height: 100%;
margin: 0;
opacity: 0;
cursor: pointer;
}
.btn-bookmark-face {
position: relative;
display: flex;
align-items: center;
width: 7.4em;
height: 2.8em;
box-sizing: border-box;
padding-left: 1.3em;
border-radius: 0.6em;
background: color-mix(in srgb, var(--c) 12%, transparent);
color: var(--c);
box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--c) 30%, transparent);
transition: transform 0.2s ease;
}
.btn-bookmark-text { display: grid; }
.btn-bookmark-text span {
grid-area: 1 / 1;
transition: opacity 0.25s ease 0.1s;
}
.btn-bookmark-text span:last-child { opacity: 0; }
.btn-bookmark-ribbon {
position: absolute;
top: -0.15em;
right: 1.1em;
width: 1em;
height: 2.5em;
background: color-mix(in srgb, var(--c) 35%, transparent);
clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 80%, 0 100%);
transform: scaleY(0.4);
transform-origin: 50% 0;
transition: transform 0.3s ease, background-color 0.3s ease;
}
.btn-bookmark:active .btn-bookmark-face { transform: scale(0.96); }
.btn-bookmark-input:focus-visible ~ .btn-bookmark-face {
outline: 2px solid var(--c);
outline-offset: 0.2em;
}
.btn-bookmark-input:checked ~ .btn-bookmark-face .btn-bookmark-text span:first-child { opacity: 0; }
.btn-bookmark-input:checked ~ .btn-bookmark-face .btn-bookmark-text span:last-child { opacity: 1; }
.btn-bookmark-input:checked ~ .btn-bookmark-face .btn-bookmark-ribbon {
background-color: var(--c);
transform: scaleY(1);
animation: btn-bookmark-drop 0.9s cubic-bezier(0.3, 0.7, 0.4, 1);
}
@keyframes btn-bookmark-drop {
0% { transform: scaleY(0.4) rotate(0deg); }
35% { transform: scaleY(1.12) rotate(0deg); }
50% { transform: scaleY(0.96) rotate(7deg); }
68% { transform: scaleY(1.02) rotate(-4deg); }
84% { transform: scaleY(1) rotate(1.5deg); }
100% { transform: scaleY(1) rotate(0deg); }
}
@media (prefers-reduced-motion: reduce) {
.btn-bookmark, .btn-bookmark *, .btn-bookmark::before, .btn-bookmark::after, .btn-bookmark *::before, .btn-bookmark *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--btn-coloron the element or a parent. Currently previewing#3b82f6. - Base size: set
--btn-size. Every other dimension is inem, so the whole thing scales together. Currently previewing18px. - 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.