/* Header */
.large-header {
    position: relative;
    width: 100%;
    background: #333;
    overflow: hidden;
    background-size: cover;
    background-position: center center;
    z-index: 1;
    background-position: center bottom;
}



.demo-2 .main-title::before {
    content: '';
    width: 20vw;
    height: 20vw;
    min-width: 3.5em;
    min-height: 3.5em;
    background: url(../img/deco.svg) no-repeat center center;
    background-size: cover;
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    z-index: -1;
    -webkit-transform: translate3d(-50%,-50%,0);
    transform: translate3d(-50%,-50%,0);
}

.main-title .thin {
    font-weight: 200;
}

@media only screen and (max-width : 768px) {
    .demo-1 .main-title,
    .demo-3 .main-title,
    .demo-4 .main-title {
        font-size: 3em;
    }

    .demo-2 .main-title {
        font-size: 4em;
    }
}