Dash to Check
An indeterminate dash morphs into a checkmark using border rotation on check.
Dash to Check the 18th of 23 designs in the 23 CSS Checkboxes 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
<label class="cb-dash">
<input class="cb-dash__input" type="checkbox" checked />
<span class="cb-dash__box">
<span class="cb-dash__mark"></span>
</span>
<span>Dash to check</span>
</label> .cb-dash {
display: inline-flex; align-items: center;
gap: 10px; cursor: pointer; user-select: none;
}
.cb-dash__input { display: none; }
.cb-dash__box {
width: 24px; height: 24px; border-radius: 7px;
border: 2px solid rgba(124,108,255,.4);
background: rgba(124,108,255,.08);
display: flex; align-items: center;
justify-content: center;
transition: border-color .3s, background .3s;
}
.cb-dash__mark {
width: 10px; height: 2px;
background: #7c6cff; border-radius: 2px;
transition: all .35s cubic-bezier(.23,1,.32,1);
}
.cb-dash__input:checked + .cb-dash__box {
border-color: #7c6cff;
background: rgba(124,108,255,.18);
}
.cb-dash__input:checked
+ .cb-dash__box .cb-dash__mark {
width: 12px; height: 12px;
background: transparent;
border-right: 2.5px solid #7c6cff;
border-bottom: 2.5px solid #7c6cff;
border-radius: 0;
transform: rotate(45deg) translate(-2px,-3px);
}