Elevator Floor Indicator
An elevator display rides up from floor 1 to 6 and back, the number sliding in from the direction of travel with a lit up or down arrow. One strip of floors, moved by generated keyframes.
Also known as: elevator display css, floor number animation, lift indicator.
HTML
<div class="txt-elevator-floor-indicator" aria-label="Elevator floor indicator"> <span class="txt-elevator-floor-indicator-arrows" aria-hidden="true"><i></i><i></i></span> <span class="txt-elevator-floor-indicator-floor" aria-hidden="true"><span>123456</span></span> </div>
CSS
.txt-elevator-floor-indicator {
--c: var(--txt-color, #3b82f6);
font-size: calc(var(--txt-size, 32px) * 1.8);
font-family: system-ui, sans-serif;
font-weight: 700;
line-height: 1.2;
display: inline-flex;
align-items: center;
gap: 0.3em;
padding: 0.25em 0.45em 0.25em 0.35em;
border-radius: 0.2em;
color: var(--c);
font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
background: color-mix(in srgb, var(--c) 8%, #0b0c0f);
box-shadow: inset 0 0 0 0.05em rgb(255 255 255 / 0.08);
--ride: 10.5s;}
.txt-elevator-floor-indicator-arrows {
display: grid;
gap: 0.12em;
}
.txt-elevator-floor-indicator-arrows i {
width: 0.42em;
height: 0.3em;
background: var(--c);
clip-path: polygon(50% 0, 100% 100%, 0 100%);
filter: drop-shadow(0 0 0.1em var(--c));
opacity: 0.15;
animation: txt-elevator-floor-indicator-up var(--ride) step-end infinite;
}
.txt-elevator-floor-indicator-arrows i:last-child {
clip-path: polygon(0 0, 100% 0, 50% 100%);
animation-name: txt-elevator-floor-indicator-down;
}
.txt-elevator-floor-indicator-floor {
height: 1.2em;
overflow: hidden;
line-height: 1.2;
text-shadow: 0 0 0.15em var(--c);
}
.txt-elevator-floor-indicator-floor span {
display: block;
width: 1ch;
word-break: break-all;
animation: txt-elevator-floor-indicator-ride var(--ride) cubic-bezier(0.45, 0, 0.3, 1) infinite;
}
@keyframes txt-elevator-floor-indicator-ride {
0% { transform: translateY(0); }
7.62% { transform: translateY(0); }
11.43% { transform: translateY(-1.2em); }
16.19% { transform: translateY(-1.2em); }
20% { transform: translateY(-2.4em); }
24.76% { transform: translateY(-2.4em); }
28.57% { transform: translateY(-3.6em); }
33.33% { transform: translateY(-3.6em); }
37.14% { transform: translateY(-4.8em); }
41.9% { transform: translateY(-4.8em); }
45.71% { transform: translateY(-6em); }
57.14% { transform: translateY(-6em); }
60.95% { transform: translateY(-4.8em); }
65.71% { transform: translateY(-4.8em); }
69.52% { transform: translateY(-3.6em); }
74.29% { transform: translateY(-3.6em); }
78.1% { transform: translateY(-2.4em); }
82.86% { transform: translateY(-2.4em); }
86.67% { transform: translateY(-1.2em); }
91.43% { transform: translateY(-1.2em); }
95.24% { transform: translateY(0); }
100% { transform: translateY(0); }
}
@keyframes txt-elevator-floor-indicator-up {
0% { opacity: 0.15; }
7.62% { opacity: 1; }
45.71%, 100% { opacity: 0.15; }
}
@keyframes txt-elevator-floor-indicator-down {
0% { opacity: 0.15; }
57.14% { opacity: 1; }
95.24%, 100% { opacity: 0.15; }
}
@media (prefers-reduced-motion: reduce) {
.txt-elevator-floor-indicator, .txt-elevator-floor-indicator *, .txt-elevator-floor-indicator::before, .txt-elevator-floor-indicator::after, .txt-elevator-floor-indicator *::before, .txt-elevator-floor-indicator *::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.