Sliding Puzzle Letters
Letter tiles slide one at a time into the empty slot of a little board until they spell SLIDE, light up in your accent, then play back scrambled. Each tile's moves come from a six-step solution.
Also known as: sliding puzzle animation css, 15 puzzle text animation, letter tiles shuffle.
HTML
<div class="txt-sliding-puzzle-letters" aria-label="Slide"><span aria-hidden="true" class="txt-sliding-puzzle-letters-s" style="--k: 0">S</span><span aria-hidden="true" class="txt-sliding-puzzle-letters-l" style="--k: 1">L</span><span aria-hidden="true" class="txt-sliding-puzzle-letters-i" style="--k: 2">I</span><span aria-hidden="true" class="txt-sliding-puzzle-letters-d" style="--k: 3">D</span><span aria-hidden="true" class="txt-sliding-puzzle-letters-e" style="--k: 4">E</span></div>
CSS
.txt-sliding-puzzle-letters {
--c: var(--txt-color, #3b82f6);
font-size: var(--txt-size, 32px);
font-family: system-ui, sans-serif;
font-weight: 700;
line-height: 1.2;
position: relative;
box-sizing: content-box;
width: 6.15em;
height: 4.05em;
padding: 0.22em;
border-radius: 0.6em;
border: 1px solid color-mix(in srgb, currentColor 14%, transparent);
background: color-mix(in srgb, currentColor 5%, transparent);
box-shadow: inset 0 0.08em 0.2em color-mix(in srgb, currentColor 8%, transparent);}
.txt-sliding-puzzle-letters span {
position: absolute;
left: 0.22em;
top: 0.22em;
display: grid;
place-items: center;
width: 1.95em;
height: 1.95em;
border-radius: 0.42em;
border: 1px solid color-mix(in srgb, currentColor 14%, transparent);
background: color-mix(in srgb, currentColor 6%, transparent);
box-shadow: 0 0.06em 0.12em color-mix(in srgb, currentColor 10%, transparent);
font-size: 1em;
}
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-s {
animation: txt-sliding-puzzle-letters-s 5s infinite alternate, txt-sliding-puzzle-letters-done 5s calc(var(--k) * 0.06s) infinite alternate both;
}
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-l {
animation: txt-sliding-puzzle-letters-l 5s infinite alternate, txt-sliding-puzzle-letters-done 5s calc(var(--k) * 0.06s) infinite alternate both;
}
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-i {
animation: txt-sliding-puzzle-letters-i 5s infinite alternate, txt-sliding-puzzle-letters-done 5s calc(var(--k) * 0.06s) infinite alternate both;
}
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-d {
animation: txt-sliding-puzzle-letters-d 5s infinite alternate, txt-sliding-puzzle-letters-done 5s calc(var(--k) * 0.06s) infinite alternate both;
}
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-e {
animation: txt-sliding-puzzle-letters-e 5s infinite alternate, txt-sliding-puzzle-letters-done 5s calc(var(--k) * 0.06s) infinite alternate both;
}
@keyframes txt-sliding-puzzle-letters-s {
0% { translate: 2.1em 0em; }
41% { translate: 2.1em 0em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
48.6% { translate: 0em 0em; }
100% { translate: 0em 0em; }
}
@keyframes txt-sliding-puzzle-letters-l {
0% { translate: 4.2em 0em; }
51% { translate: 4.2em 0em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
58.6% { translate: 2.1em 0em; }
100% { translate: 2.1em 0em; }
}
@keyframes txt-sliding-puzzle-letters-i {
0% { translate: 2.1em 2.1em; }
11% { translate: 2.1em 2.1em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
18.6% { translate: 4.2em 2.1em; }
61% { translate: 4.2em 2.1em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
68.6% { translate: 4.2em 0em; }
100% { translate: 4.2em 0em; }
}
@keyframes txt-sliding-puzzle-letters-d {
0% { translate: 0em 0em; }
31% { translate: 0em 0em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
38.6% { translate: 0em 2.1em; }
100% { translate: 0em 2.1em; }
}
@keyframes txt-sliding-puzzle-letters-e {
0% { translate: 0em 2.1em; }
21% { translate: 0em 2.1em; animation-timing-function: cubic-bezier(0.3, 1.25, 0.5, 1); }
28.6% { translate: 2.1em 2.1em; }
100% { translate: 2.1em 2.1em; }
}
@keyframes txt-sliding-puzzle-letters-done {
0%, 80% { background-color: color-mix(in srgb, currentColor 6%, transparent); color: inherit; }
88%, 100% { background-color: var(--c); color: #fff; }
}
@media (prefers-reduced-motion: reduce) {
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-s { animation: none; background: var(--c); color: #fff; translate: 0em 0em; }
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-l { animation: none; background: var(--c); color: #fff; translate: 2.1em 0em; }
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-i { animation: none; background: var(--c); color: #fff; translate: 4.2em 0em; }
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-d { animation: none; background: var(--c); color: #fff; translate: 0em 2.1em; }
.txt-sliding-puzzle-letters .txt-sliding-puzzle-letters-e { animation: none; background: var(--c); color: #fff; translate: 2.1em 2.1em; }
}
@media (prefers-reduced-motion: reduce) {
.txt-sliding-puzzle-letters, .txt-sliding-puzzle-letters *, .txt-sliding-puzzle-letters::before, .txt-sliding-puzzle-letters::after, .txt-sliding-puzzle-letters *::before, .txt-sliding-puzzle-letters *::after {
animation-duration: 0.01ms !important;
animation-iteration-count: 1 !important;
transition-duration: 0.01ms !important;
}
}Customizing this snippet
- Color: set
--txt-coloron the element or a parent. Currently previewing#3b82f6. - Font size: set
--txt-size. Every other dimension is inem, so the whole thing scales together. Currently previewing40px. - 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.