html⾃定义select样式,CSS3⾃定义select选择框样式css
body {
background:#2d2d2d;
display:flex;
justify-content: center;
align-items:center;
flex-wrap:wrap;
padding:0;
margin:0;
height:100vh;
width:100vw;
font-family: sans-serif;
color:#FFF;
absolute relative}
.select {
display:flex;
flex-direction: column;
position:relative;
width:250px;
height:40px;
}
.option {
padding:0 30px 0 10px;
min-height:40px;
display:flex;
align-items:center;
background:#333;
border-top:#222 solid 1px;
position:absolute;
top:0;
width: 100%;
pointer-events:none;
order:2;
z-index:1;
transition:background .4s ease-in-out; box-sizing:border-box;
overflow:hidden;
white-space:nowrap;
}
.option:hover {
background:#666;
}
.select:focus .option {
position:relative;
pointer-events:all;
}
input {
opacity:0;
position:absolute;
left:-99999px;
}
input:checked + label {
order: 1;
z-index:2;
background:#666;
border-top:none;
position:relative;
}
input:checked + label:after {
content:'';
width: 0;
height: 0;
border-left: 5px solid transparent; border-right: 5px solid transparent; border-top: 5px solid white;
position:absolute;
right:10px;
top:calc(50% - 2.5px);
pointer-events:none;
z-index:3;
}
input:checked + label:before { position:absolute;
right:0;
height: 40px;
width: 40px;
content: '';
background:#666;
}

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