CSS

html, body, #hero-image {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

#hero-image {
    background: rgba(255, 46, 68, 1) url("img/hero-bg.png") center center;
    background-size: cover;
    background-attachment: fixed;
}

#hero-content {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 100%;
    transform: translateX(-50%) translateY(-50%);
}

#hero-computers {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    width: 600px;
    height: auto;
    opacity: 0.7;
    z-index: -1;
}

@font-face {
    font-family: "Arimo-BoldItalic";
    src: url("fonts/Arimo-BoldItalic.ttf");
}

#hero-title {
    font-weight: bolder;
    font-size: 70px;
    color: white;
    font-family: "Arimo-BoldItalic";
    text-align: center;
    z-index: 1;
}

#scroll-down {
    position: fixed;
    width: 100%;
    height: 64px;
    margin-top: -64px;
    bottom: 5px;
}

#scroll-arrow {
    position: absolute;
    background: url("img/down-arrow.png") center no-repeat;
    width: 64px;
    height: 64px;
    left: 50%;
    margin-left: -32px;
}

#features {
    position: relative;
    height: 100%;
    background-color: #eeeeee;
    z-index: 100;
}