Typewriter
Activating a tab triggers a typewriter animation on the panel: text reveals via max-width steps animation, with a blinking cursor at the end. Pure CSS via radio inputs and steps() timing.
Typewriter the 11th of 32 designs in the 32 CSS Tab Designs collection. The design is implemented in pure CSS — no JavaScript required. Copy the HTML and CSS panels below into your project. Because the demo is pure CSS, it works in any framework or templating engine you happen to use. The design honours prefers-reduced-motion and uses real semantic markup, so it ships accessibility-ready out of the box.
Live preview
The code
<div class="tt31">
<nav class="tt31n">
<input type="radio" name="tt31" id="tt31-r1" checked />
<label class="tt31b" for="tt31-r1">Greet</label>
<input type="radio" name="tt31" id="tt31-r2" />
<label class="tt31b" for="tt31-r2">Status</label>
<input type="radio" name="tt31" id="tt31-r3" />
<label class="tt31b" for="tt31-r3">Goodbye</label>
</nav>
<div class="tt31body">
<div class="tt31p"><span class="tt31type">Hello, friend.</span></div>
<div class="tt31p"><span class="tt31type">Systems nominal.</span></div>
<div class="tt31p"><span class="tt31type">See you tomorrow.</span></div>
</div>
</div> .tt31 {
background: #1a1625;
padding: 22px 22px;
font-family: ui-monospace, "SF Mono", Menlo, monospace;
min-height: 220px;
box-sizing: border-box;
width: 100%;
}
.tt31n {
display: flex;
gap: 4px;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
margin-bottom: 18px;
min-width: 0;
}
.tt31n input {
position: absolute;
opacity: 0;
pointer-events: none;
}
.tt31b {
flex: 1;
min-width: 0;
padding: 9px 12px;
font:
600 11px/1 ui-monospace,
monospace;
letter-spacing: 0.1em;
text-transform: uppercase;
color: rgba(255, 255, 255, 0.45);
cursor: pointer;
text-align: center;
border-bottom: 2px solid transparent;
margin-bottom: -1px;
transition:
color 0.2s,
border-color 0.2s;
white-space: nowrap;
}
.tt31b:hover {
color: rgba(255, 255, 255, 0.85);
}
.tt31n input:checked + .tt31b {
color: #fbbf24;
border-bottom-color: #fbbf24;
}
.tt31n input:focus-visible + .tt31b {
outline: 1px dashed #fbbf24;
outline-offset: -3px;
}
.tt31body {
padding: 6px 0;
}
.tt31p {
display: none;
}
.tt31:has(#tt31-r1:checked) .tt31p:nth-of-type(1),
.tt31:has(#tt31-r2:checked) .tt31p:nth-of-type(2),
.tt31:has(#tt31-r3:checked) .tt31p:nth-of-type(3) {
display: block;
}
.tt31type {
display: inline-block;
overflow: hidden;
white-space: nowrap;
font:
14px/1.6 ui-monospace,
monospace;
color: #fbbf24;
border-right: 2px solid #fbbf24;
width: 0;
animation:
tt31-type 1.4s steps(20) forwards,
tt31-blink 0.8s step-end infinite 1.4s;
}
@keyframes tt31-type {
to {
width: 100%;
}
}
@keyframes tt31-blink {
50% {
border-right-color: transparent;
}
}
@media (prefers-reduced-motion: reduce) {
.tt31type {
animation: none;
width: 100%;
border-right-color: transparent;
}
}