使用CSS3美化复选框checkbox

方法一 ：使用图片

.checkbox {
display: none;
}
.checkbox-i{
margin-right: 20px;
background-image: url("../img/icon.png");
background-repeat: no-repeat;
background-position: -324px -40px;
width: 22px;
height: 22px;
display: inline-block;
position: relative;
top: 5px;
}

.checkbox:checked + .checkbox-i{
background-position: -324px -11px;
}

<input type="checkbox" class="checkbox " id="test">
<label class="checkbox-i" for="test"></label>
<label class="label" for="test">

test

</label>

方法二：使用after

.chk_1 {

display:none;

}

.chk_1 + label {

    background-color: #FFF;

    border: 1px solid #C1CACA;

    /* box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05), inset 0px -15px 10px -12px rgba(0, 0, 0, 0.05); */

    padding: 9px;

    border-radius: 5px;

    display: inline-block;

    position: relative;

    margin-right: 30px;

}

.chk_1:checked + label {

    background-color: #ECF2F7;

    border: 1px solid #92A1AC;

    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05), inset 0px -15px 10px -12px rgba(0, 0, 0, 0.05), inset 15px 10px -12px rgba(255, 255, 255, 0.1);

    color: #243441;

}

.chk_1:checked + label:after {

    content: '\2714';

    position: absolute;

    top: 0px;

    left: 0px;

    color: #758794;

    width: 100%;

    text-align: center;

    font-size: 1.4em;

    padding: 1px 0 0 0;

    vertical-align: text-top;

}

<input type="checkbox" id="checkbox_a1" class="chk_1" checked="">

<label for="checkbox_a1"></label>