body {
    background: repeating-linear-gradient(
        45deg,
        brown,
        darkolivegreen 10px,
        #222 20px
    );
    font-family: "Comic Sans MS", cursive;
    color: yellow;
    text-align: center;
}

h1 {
    font-size: 90px;
    color: lime;
    text-shadow: 6px 6px red;
}

.tagline {
    font-size: 28px;
    color: cyan;
}

ul, ol {
    display: inline-block;
    text-align: left;
    font-size: 22px;
    background: black;
    padding: 20px;
    border: 5px dashed magenta;
}

button {
    margin-top: 40px;
    font-size: 36px;
    background: lime;
    border: 8px dotted red;
    padding: 20px;
    animation: blink 0.8s infinite;
    cursor: pointer;
}

@keyframes blink {
    0% { opacity: 1; }
    50% { opacity: 0.2; }
    100% { opacity: 1; }
}

.warning {
    font-size: 24px;
    color: red;
    background: yellow;
    padding: 10px;
    margin: 30px;
}

a {
    color: fuchsia;
    font-size: 22px;
}

footer {
    margin-top: 80px;
    font-size: 14px;
    color: white;
}