:root {
    --background: #181818;
}

body {
    background: var(--background);
    width: 700px;
    margin: auto;
    margin-top: 100px;
    word-wrap: break-word;
    font-family: Arial, Helvetica, sans-serif;
    color: #ccc;
}

a {
    color: #2244ff;
}

code {
    background: #111;
    font-family: monospace;
    color: #ccc;
    padding: 10px;
    border-radius: 8px;
    font-size: 16px;
    line-height: 36px;
    display: block;
    margin: 20px;
}

input {
    background: #111;
    font-family: monospace;
    color: #ccc;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 16px;
    line-height: 36px;
    margin: 20px;
    outline: none;
    border: none;
    margin-top: none;
    width: calc(100% - 60px);
}

.notvalid {
    color: #181818;
    margin: 0 20px;
    font-size: 16px;
    font-family: monospace;
    transition: 0.2s;
}

input:invalid ~ .notvalid {
    color: #f00;
}

.infotext {
    font-size: 20px;
    margin: 20px;
    color: #ccc;
}

.coded-with {
    position: fixed;
    right: 10px;
    bottom: 10px;
}

div.output {
    margin: 20px;
}

div.output > code {
    margin: 20px 0px;
}

.benefits {
    color: #0a0;
}

.disadvantage {
    color: #f00;
}

.disadvantage > a {
    color: #f00;
}

@media screen and (max-width: 700px) {
    body {
        width: 100%;
    }

    .coded-with {
        position: unset;
        margin-top: 20px;
        text-align: right;
    }
}