.tt11 {
background: #dc1e3a;
padding: 0;
font-family: ui-monospace, monospace;
min-height: 220px;
display: flex;
flex-direction: column;
width: 100%;
}
.tt11n {
display: flex;
gap: 0;
flex-shrink: 0;
}
.tt11n input {
position: absolute;
opacity: 0;
pointer-events: none;
}
.tt11b {
flex: 1;
padding: 18px 12px;
border: 0;
background: #dc1e3a;
color: #f5ead0;
font:
800 12px/1 ui-monospace,
monospace;
letter-spacing: 0.22em;
text-transform: uppercase;
cursor: pointer;
border-right: 1px solid rgba(245, 234, 208, 0.25);
transition:
background 0.05s steps(1, end),
color 0.05s steps(1, end),
box-shadow 0.4s;
}
.tt11b:last-child {
border-right: 0;
}
.tt11b:hover {
background: rgba(245, 234, 208, 0.1);
}
.tt11n input:checked + .tt11b {
background: #f5ead0;
color: #dc1e3a;
box-shadow: inset 0 0 0 0 rgba(0, 0, 0, 0.4);
animation: tt11-impact 0.35s cubic-bezier(0.65, 0, 0.35, 1);
}
@keyframes tt11-impact {
0% {
box-shadow: inset 0 0 0 0 rgba(0, 0, 0, 0.4);
}
20% {
box-shadow: inset 0 4px 14px rgba(0, 0, 0, 0.5);
}
100% {
box-shadow: inset 0 0 0 0 rgba(0, 0, 0, 0);
}
}
.tt11p {
display: none;
padding: 14px 18px;
background: #f5ead0;
font:
italic 11px/1.6 ui-serif,
Georgia,
serif;
color: #3a3a42;
flex: 1;
}
.tt11:has(#tt11-r1:checked) .tt11p:nth-of-type(1),
.tt11:has(#tt11-r2:checked) .tt11p:nth-of-type(2),
.tt11:has(#tt11-r3:checked) .tt11p:nth-of-type(3),
.tt11:has(#tt11-r4:checked) .tt11p:nth-of-type(4),
.tt11:has(#tt11-r5:checked) .tt11p:nth-of-type(5),
.tt11:has(#tt11-r6:checked) .tt11p:nth-of-type(6) {
display: flex;
align-items: center;
}
@media (prefers-reduced-motion: reduce) {
.tt11n input:checked + .tt11b {
animation: none;
}
} <div class="tt11">
<nav class="tt11n">
<input type="radio" name="tt11" id="tt11-r1" checked />
<label class="tt11b" for="tt11-r1">Recto</label>
<input type="radio" name="tt11" id="tt11-r2" />
<label class="tt11b" for="tt11-r2">Verso</label>
<input type="radio" name="tt11" id="tt11-r3" />
<label class="tt11b" for="tt11-r3">Folio</label>
</nav>
<div class="tt11p">The right-hand page, traditionally odd-numbered.</div>
<div class="tt11p">The left-hand page, traditionally even.</div>
<div class="tt11p">The full leaf — both sides counted as one.</div>
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