.content-wrapper {
    padding: 0;
    z-index: 1;
    overflow: visible;
}

.content-wrapper .content {
    margin-top: 100px;
}

#header {
    position: fixed;
    width: 100%;
    left: 0;
    top: 0;
    z-index: 3;
    height: 180px;
    overflow: hidden;
    box-shadow: 0 1px 0 rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .1);
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(17px);
    -webkit-backdrop-filter: blur(17px);
}

#header h1 {
    position: absolute;
    left: 100px;
    top: 70px;
    font-family: 'Helvetica', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    font-size: 30px;
    font-weight: lighter;
    color: #999;
}