CSS for Custom Bullet Points

ul.bullets{
    list-style: none !important;
    padding: 0;
    margin-left: 40px;
}

ul.bullets li {
    position: relative;
    color: #ffffff !important;
    margin-bottom: 1.2em;
    min-width: 20px;
    min-height: 20px;
}

ul.bullets li:before {
    content: "";
    background-image: url('xxx');
    background-repeat: no-repeat;
    background-position: 0 0;
    background-size: 20px;
    width: 20px;
    height: 20px;
    top: 3px;
    left: -40px;
    position: absolute;
}