html,
body {
    display: flex;
    height: 100%;
    margin: 0;
    font-size: 16px;
    font-family: sans-serif;
    background-color: #eee;
    justify-content: center;
}

.output {
    position: relative;
    min-height: 15em;
    margin: 2em 0;
    background-color: #eee;
    height: 100%;
}

.output.is-loading::before {
    box-sizing: border-box;
    content: '';
    position: absolute;
    display: block;
    font-size: 4em;
    width: 1em;
    height: 1em;
    top: 50%;
    left: 50%;
    margin: -0.5em 0 0 -0.5em;
    border: 10px solid #ddd;
    border-top: 10px solid #222;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.demo-site {
    width: 1200px;
    height: 80%;
}

h1 {
    font-size: 2em;
    margin: 0 0 1em;
}

h4 {
    height: auto;
    color: #6FBA2C;
    margin: 0 1em 1.5em;
    text-align: center;
}

p {
    font-size: 1.25em;
    line-height: 1.4;
    margin: 0 0 1em;
}

.back-to-login-container {
    text-align: right;
    margin-bottom: 1%;
}

.gtm-noscript-frame {
    display: none;
    visibility: hidden;
}

#logout {
    background-color: #ABCD03;
    color: white;
    right: 0;
    top: 0;
    margin-top: 2%;
    margin-right: 3%;
    position: absolute;
    vertical-align: top;
    padding: 10px;
    border-radius: 5px;
    border: none;
    width: 150px;
    font-size: 16px;
    font-family: inherit;
}

#logout:hover {
    background-color: #6FBA2C;
}