:root {
    --animationDuration: 8s;
    --backgroundOpacity: .2;
    --contentBackgroundOpacity: .7;
}

@keyframes ani-body {
    0% {
        background: rgba(0, 127, 255, var(--backgroundOpacity, 1));
    }
    15% {
        background: rgba(0, 0, 255, var(--backgroundOpacity, 1));
    }
    25% {
        background: rgba(255, 0, 255, var(--backgroundOpacity, 1));
    }
    45% {
        background: rgba(255, 0, 0, var(--backgroundOpacity, 1));
    }
    60% {
        background: rgba(255, 255, 0, var(--backgroundOpacity, 1));
    }
    80% {
        background: rgba(0, 255, 0, var(--backgroundOpacity, 1));
    }
    100% {
        background: rgba(0, 127, 255, var(--backgroundOpacity, 1));
    }
}

@keyframes ani-content {
    0% {
        background: rgba(0, 127, 255, var(--contentBackgroundOpacity, 1));
    }
    15% {
        background: rgba(0, 0, 255, var(--contentBackgroundOpacity, 1));
    }
    25% {
        background: rgba(255, 0, 255, var(--contentBackgroundOpacity, 1));
    }
    45% {
        background: rgba(255, 0, 0, var(--contentBackgroundOpacity, 1));
    }
    60% {
        background: rgba(255, 255, 0, var(--contentBackgroundOpacity, 1));
    }
    80% {
        background: rgba(0, 255, 0, var(--contentBackgroundOpacity, 1));
    }
    100% {
        background: rgba(0, 127, 255, var(--contentBackgroundOpacity, 1));
    }
}

ol, ul {
    list-style: none
}

body, h1, html, p, li, ul, a, img {
    margin: 0;
    padding: 0;
    border: 0;
    font: inherit;
    vertical-align: baseline;
}

* {
    box-sizing: border-box
}

html {
    font-family: "Trebuchet MS", Helvetica, sans-serif
}

body, html {
    width: 100%;
    height: 100%;
}

html {
    background-color: rgba(0, 127, 255, 0.2);
    animation: ani-body var(--animationDuration, 1s) infinite;
}

body {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-family: "DIN Next W01 Regular", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.content {
    width: 50vw;
    color: #333;
    background-color: rgba(0, 127, 255, .7);
    border: 1px solid currentColor;
    animation: ani-content var(--animationDuration, 1s) infinite;
}

.content > *:not(:first-child) {
    border-top: 1px solid currentColor;
}

h1 {
    font-weight: 700;
    font-size: 9vw;
    font-family: "DIN Next W01 Bold", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: rgba(0, 0, 0, 0.6);
    text-shadow: 2px 8px 6px rgba(0, 0, 0, 0.2), 0 -5px 35px rgba(255, 255, 255, 0.3);
    padding-top: 0.15em;
}

h1 + p {
    padding: .3em .6em;
}

p {
    font-size: 4vw;
}

a, img {
    display: block;
    width: 100%;
}