html {
            box-sizing: border-box;
            font-family: "Arial Rounded MT Bold", "Helvetica Rounded", Arial, sans-serif;
        }

        *,
        *:before,
        *:after {
            box-sizing: inherit;
        }

        body {
            margin: 0;
            min-height: 100vh;
            background:
                linear-gradient(45deg, hsla(340, 100%, 55%, 1) 0%, hsla(340, 100%, 55%, 0) 70%),
                linear-gradient(135deg, hsla(225, 95%, 50%, 1) 10%, hsla(225, 95%, 50%, 0) 80%),
                linear-gradient(225deg, hsla(140, 90%, 50%, 1) 10%, hsla(140, 90%, 50%, 0) 80%),
                linear-gradient(315deg, hsla(35, 95%, 55%, 1) 100%, hsla(35, 95%, 55%, 0) 70%);
        }

        h2 {
            margin-top: 0;
            padding-top: .8em;
        }

        nav {
            position: relative;
            perspective: 600px;
        }

        .cool>li>a {
            color: yellow;
            text-decoration: none;
            font-size: 20px;
            background: rgba(0, 0, 0, 0.2);
            padding: 10px 20px;
            display: inline-block;
            margin: 20px;
            border-radius: 5px;
        }

        nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
        }

        .cool>li {
            position: relative;
            display: flex;
            justify-content: center;
        }

        .dropdown {
            opacity: 0;
            position: absolute;
            overflow: hidden;
            padding: 20px;
            top: -20px;
            border-radius: 2px;
            transition: all 0.5s;
            transform: translateY(100px);
            will-change: opacity;
            display: none;
        }

        .trigger-enter .dropdown {
            display: block;
        }

        .trigger-enter-active .dropdown {
            opacity: 1;
        }

        .dropdownBackground {
            width: 100px;
            height: 100px;
            position: absolute;
            background: #fff;
            border-radius: 4px;
            box-shadow: 0 50px 100px rgba(50, 50, 93, .1), 0 15px 35px rgba(50, 50, 93, .15), 0 5px 15px rgba(0, 0, 0, .1);
            transition: all 0.3s, opacity 0.1s, transform 0.2s;
            transform-origin: 50% 0;
            display: flex;
            justify-content: center;
            opacity: 0;
        }

        .dropdownBackground.open {
            opacity: 1;
        }

        .arrow {
            position: absolute;
            width: 20px;
            height: 20px;
            display: block;
            background: white;
            transform: translateY(-50%) rotate(45deg);
        }

        .bio {
            min-width: 500px;
            display: flex;
            justify-content: center;
            align-items: center;
            line-height: 1.7;
        }

        .bio img {
            float: left;
            margin-right: 20px;
        }

        .courses {
            min-width: 300px;
        }

        .courses li {
            padding: 10px 0;
            display: block;
            border-bottom: 1px solid rgba(0, 0, 0, 0.2);
        }

        .dropdown a {
            text-decoration: none;
            color: #ffc600;
        }

        a.button {
            background: black;
            display: block;
            padding: 10px;
            color: white;
            margin-bottom: 10px;
        }

        /* Matches Twitter, TWITTER, twitter, tWitter, TWiTTeR... */
        .button[href*=twitter] {
            background: #019FE9;
        }

        .button[href*=facebook] {
            background: #3B5998;
        }

        .button[href*=courses] {
            background: #ffc600;
        }