checkbox with cross

by Valentin Sarychev

HTML

<input type="checkbox" id="checkbox-1" />
<label class="checkbox" for="checkbox-1">
    <i class="checkbox-box"></i>
    CHECKBOX
</label>

CSS

[type="checkbox"] {
    display: none;
}
[type="checkbox"] + label {
    padding-left: 23px;
    line-height: 20px;
}
[type="checkbox"] + label .checkbox-box {
    position: relative;
    display: block;
    float: left;
    width: 16px;
    height: 16px;
    border: 2px solid black;
}
[type="checkbox"]:checked + label .checkbox-box:before {
    position: absolute;
    content: '';
    width: 100%;
    height: 2px;
    margin-top: 50%;
    top: -1px;
    background: black;
    transform: rotate(45deg);
}
[type="checkbox"]:checked + label .checkbox-box:after {
    position: absolute;
    content: '';
    width: 2px;
    height: 100%;
    margin-left: 50%;
    left: -1px;
    background: black;
    transform: rotate(45deg);
}