#introduction>div[class="title"]{
    float: left;
    height:var(--h_title_intro);
    width: 100%;
    line-height: var(--h_title_intro);
    position: relative;
}
#introduction>div[class="title"]>h1{
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    transform: translate(-50%,-50%);
    text-align: center;

    font-family: 'roboto_condensedlight';
    line-height: calc(var(--h_title_size) + 4px);
    font-size: var(--h_title_size);
    color: white;
}