.main-header {
    text-align: justify;
    position: absolute;
    box-sizing: border-box;
    padding-top: 28px;
    padding-left: 140px;
    padding-right: 140px;
    width: 100%;
    height: 100px;
    z-index: 1;
}

.main-header::after {
    content: '';
    display: inline-block;
    width: 100%;
}