Milligram CSS for checkbox

milligram_checkbox.css

[type="checkbox"], [type="radio"]
{
    position: absolute;
    left: -9999px;
}
[type="checkbox"] + label,[type="radio"] + label
{
    position: relative;
    padding-left: 28px;
    cursor: pointer;
    line-height: 20px;
    display: inline-block;
    color: #666;
}
[type="checkbox"] + label:before,
[type="radio"] + label:before
{
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 18px;
    height: 18px;
    border: 1px solid #ddd;
    background: #fff;
}

[type="radio"] + label:before, [type="radio"] + label:after
{
    border-radius: 50%;
}
[type="checkbox"] + label:after,
[type="radio"] + label:after
{
    content: '';
    width: 8px;
    height: 8px;
    background: #00a69c;
    position: absolute;
    top: 6px;
    left: 6px;
}
[type="checkbox"]:not(:checked) + label:after
{
    opacity: 0;
}
[type="checkbox"]:checked + label:after
{
    opacity: 1;
}

[type="checkbox"]:disabled + label:before
{
    border-color: #ccc;
    background-color: #eee;
}
[type="checkbox"]:disabled:checked + label:after
{
    background: #aaa;
}