.ul-base {
    margin: 12px;
    list-style: none;
}
.ul-base li{
    line-height: 24px;
}
.ul-base li:before {
    padding-right:10px;
    font-weight: bold;
    color: #1877F2;
    content: "\2714";
    transition-duration: 0.5s;
}
.ul-base li:hover:before {
    color: #F15044;
    content: "\2714";
}