body
{
    margin: 0;
    padding: 0;
}
section
{
    height: 100vh;
    background: #000;
}
section::before
{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, 
        #f00, #f00, #0f0, #ff0, 
        #0ff, #00f, indigo);
    mix-blend-mode: color;
    pointer-events: none;
}
video
{
    object-fit: cover;
}
h1
{
    margin: 0;
    padding: 0;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 5em;
    font-family: sans-serif;
    letter-spacing: 0.2em;
}
h1 span
{
    opacity: 0;
    display: inline-block;
    animation: animate 1s linear forwards;
}
@keyframes animate
{
    0%
    {
        opacity: 0;
        transform: rotateY(90deg);
        filter: blur(10px);
    }
    100%
    {
        opacity: 1;
        transform: rotateY(0deg);
        filter: blur(0);
    }
}
h1 span:nth-child(01) { animation-delay: 0.50s; }
h1 span:nth-child(02) { animation-delay: 0.95s; }
h1 span:nth-child(03) { animation-delay: 1.40s; }
h1 span:nth-child(04) { animation-delay: 1.85s; }
h1 span:nth-child(05) { animation-delay: 2.30s; }
h1 span:nth-child(06) { animation-delay: 2.75s; }
h1 span:nth-child(07) { animation-delay: 3.20s; }
h1 span:nth-child(08) { animation-delay: 3.65s; }
h1 span:nth-child(09) { animation-delay: 4.10s; }
h1 span:nth-child(10) { animation-delay: 4.55s; }
h1 span:nth-child(11) { animation-delay: 5.00s; }