32 CSS Search Box & Search Bar Designs 30 / 32
Border Trace
On focus, two halves of a border trace simultaneously around the input — a clean line-drawing reveal.
The code
<form class="csb-trace" role="search"> <label class="csb-sr" for="csb-trace-i">Search</label> <input id="csb-trace-i" type="search" name="q" placeholder="Search..." /> <span class="csb-trace-tl"></span> <span class="csb-trace-br"></span> </form>
<form class="csb-trace" role="search">
<label class="csb-sr" for="csb-trace-i">Search</label>
<input id="csb-trace-i" type="search" name="q" placeholder="Search..." />
<span class="csb-trace-tl"></span>
<span class="csb-trace-br"></span>
</form>.csb-trace {
position: relative; display: inline-block;
padding: 0;
}
.csb-trace input {
width: 240px; padding: 11px 14px;
background: #1a1a28;
border: 1px solid rgba(255,255,255,0.08);
border-radius: 8px;
color: #f0eeff; font: 500 14px/1 system-ui, sans-serif;
outline: none;
transition: border-color 0.15s;
}
.csb-trace:focus-within input { border-color: transparent; }
.csb-trace input::placeholder { color: #b8b6d4; }
.csb-trace-tl, .csb-trace-br {
position: absolute; pointer-events: none;
border-color: #7c6cff;
border-radius: 8px;
}
.csb-trace-tl {
top: 0; left: 0;
width: 0; height: 0;
border-top: 1.5px solid transparent;
border-left: 1.5px solid transparent;
}
.csb-trace-br {
bottom: 0; right: 0;
width: 0; height: 0;
border-bottom: 1.5px solid transparent;
border-right: 1.5px solid transparent;
}
.csb-trace:focus-within .csb-trace-tl {
width: 100%; height: 100%;
border-top-color: #7c6cff;
border-left-color: #7c6cff;
transition: width 0.25s ease, height 0.25s ease 0.25s;
}
.csb-trace:focus-within .csb-trace-br {
width: 100%; height: 100%;
border-bottom-color: #7c6cff;
border-right-color: #7c6cff;
transition: width 0.25s ease 0.5s, height 0.25s ease 0.25s;
}
.csb-sr {
position: absolute !important;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
.csb-trace {
position: relative; display: inline-block;
padding: 0;
}
.csb-trace input {
width: 240px; padding: 11px 14px;
background: #1a1a28;
border: 1px solid rgba(255,255,255,0.08);
border-radius: 8px;
color: #f0eeff; font: 500 14px/1 system-ui, sans-serif;
outline: none;
transition: border-color 0.15s;
}
.csb-trace:focus-within input { border-color: transparent; }
.csb-trace input::placeholder { color: #b8b6d4; }
.csb-trace-tl, .csb-trace-br {
position: absolute; pointer-events: none;
border-color: #7c6cff;
border-radius: 8px;
}
.csb-trace-tl {
top: 0; left: 0;
width: 0; height: 0;
border-top: 1.5px solid transparent;
border-left: 1.5px solid transparent;
}
.csb-trace-br {
bottom: 0; right: 0;
width: 0; height: 0;
border-bottom: 1.5px solid transparent;
border-right: 1.5px solid transparent;
}
.csb-trace:focus-within .csb-trace-tl {
width: 100%; height: 100%;
border-top-color: #7c6cff;
border-left-color: #7c6cff;
transition: width 0.25s ease, height 0.25s ease 0.25s;
}
.csb-trace:focus-within .csb-trace-br {
width: 100%; height: 100%;
border-bottom-color: #7c6cff;
border-right-color: #7c6cff;
transition: width 0.25s ease 0.5s, height 0.25s ease 0.25s;
}
.csb-sr {
position: absolute !important;
width: 1px;
height: 1px;
padding: 0;
margin: -1px;
overflow: hidden;
clip: rect(0, 0, 0, 0);
white-space: nowrap;
border: 0;
}
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