.section-header {
    font-size: 35px;
    text-transform: uppercase;
    position: relative;
    padding: 0 0 30px 0;
    margin: 0 0 15px 0;
    font-weight: 600;
    text-align: center;
    margin-top: 20px;
}

.section-header::before {
    position: absolute;
    content: url(../images/wave-line.png);
    left: 50%;
    margin-left: -35px;
    bottom: 0;
}