.box h4 {
    position: relative;
    left: 0 !important;
    right: 0 !important;
    font-size: 17px;
    margin-bottom: 30px;
    padding: 10px 0px 20px;
    background-color: transparent !important;
}

.box h4:after {
    content: '';
    position: absolute;
    width: calc(100% + 60px);
    height: 2px;
    left: -30px;
    bottom: 0;
}