自定义input[type="checkbox"]样式

input[type=checkbox] {
    visibility: hidden;
    position: relative;
}

input[type=checkbox]:after {
    content: "";
    display: block;
    position: absolute;
    width: 18px;
    height: 18px;
    visibility: visible;
    box-sizing: border-box;
    border-radius: 18px;
    background: #CBCED1;
}
input[type=checkbox]:checked::after{
    background: #2882DD;
}
input[type=checkbox]:checked::before {
    content: "";
    display: block;
    position: absolute;
    left: 4px;
    top: 4px;
    width: 10px;
    height: 6px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-right-color: transparent;
    -ms-transform: rotate(-60deg);
    -moz-transform: rotate(-60deg);
    -webkit-transform: rotate(-60deg);
    transform: rotate(-45deg);
    visibility: visible;
    z-index: 1;
    box-sizing: border-box;
}
input[type=checkbox]:before {
    content: "";
    display: block;
    position: absolute;
    left: 4px;
    top: 4px;
    width: 10px;
    height: 6px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-right-color: transparent;
    -ms-transform: rotate(-60deg);
    -moz-transform: rotate(-60deg);
    -webkit-transform: rotate(-60deg);
    transform: rotate(-45deg);
    visibility: visible;
    z-index: 1;
    box-sizing: border-box;
}