.tt25 {
background: #1e1e1e;
padding: 0;
font-family: ui-monospace, monospace;
min-height: 220px;
box-sizing: border-box;
width: 100%;
}
.tt25n {
display: flex;
background: #2d2d2d;
border-bottom: 1px solid #1e1e1e;
min-width: 0;
}
.tt25n input {
position: absolute;
opacity: 0;
pointer-events: none;
}
.tt25b {
display: flex;
align-items: center;
gap: 8px;
padding: 10px 16px;
font:
12px/1 ui-monospace,
monospace;
color: rgba(255, 255, 255, 0.6);
cursor: pointer;
border-right: 1px solid #1e1e1e;
position: relative;
white-space: nowrap;
transition:
background 0.18s,
color 0.18s;
}
.tt25b:hover {
color: rgba(255, 255, 255, 0.85);
background: rgba(255, 255, 255, 0.04);
}
.tt25dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--c);
flex-shrink: 0;
}
.tt25n input:checked + .tt25b {
background: #1e1e1e;
color: #fff;
border-bottom: 1px solid #1e1e1e;
margin-bottom: -1px;
}
.tt25n input:checked + .tt25b::before {
content: "";
position: absolute;
top: 0;
left: 0;
right: 0;
height: 2px;
background: #4fc1ff;
}
.tt25n input:focus-visible + .tt25b {
outline: 1px dashed #4fc1ff;
outline-offset: -3px;
}
.tt25body {
padding: 18px 20px;
}
.tt25p {
display: none;
font:
12px/1.6 ui-monospace,
monospace;
color: #d4d4d4;
}
.tt25p:nth-of-type(1) {
color: #569cd6;
}
.tt25:has(#tt25-r1:checked) .tt25p:nth-of-type(1),
.tt25:has(#tt25-r2:checked) .tt25p:nth-of-type(2),
.tt25:has(#tt25-r3:checked) .tt25p:nth-of-type(3) {
display: block;
} <div class="tt25">
<nav class="tt25n">
<input type="radio" name="tt25" id="tt25-r1" checked />
<label class="tt25b" for="tt25-r1"
><span class="tt25dot" style="--c: #3178c6"></span>app.tsx</label
>
<input type="radio" name="tt25" id="tt25-r2" />
<label class="tt25b" for="tt25-r2"
><span class="tt25dot" style="--c: #f0db4f"></span>config.js</label
>
<input type="radio" name="tt25" id="tt25-r3" />
<label class="tt25b" for="tt25-r3"
><span class="tt25dot" style="--c: #264de4"></span>styles.css</label
>
</nav>
<div class="tt25body">
<div class="tt25p">// app.tsx<br />export default App;</div>
<div class="tt25p">// config.js<br />module.exports = {};</div>
<div class="tt25p">/* styles.css */<br />:root { color: white; }</div>
</div>
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