body {
    margin: 0;
    padding: 0;
    height: 100%;
    min-height: 100%;
    font-family: Roboto,"Helvetica Neue",sans-serif;
}

.playground-header {
    height: 64px;
    background: #263238;
    color: white;
    display: flex;
    box-sizing: border-box;
    padding: 0 16px;
    width: 100%;
    flex-direction: row;
    align-items: center;
    white-space: nowrap;
    font: 500 20px/32px Roboto,"Helvetica Neue",sans-serif;
}

.playground-logo {
    box-sizing: border-box;
    display: block;
}

.playground-logo .logo {
    vertical-align: middle;
    max-height: 64px;
    max-width: 160px;
    width: 100px;
}

.playground-logo .subtitle {
    display: inline-block;
    vertical-align: middle;
    margin-left: 20px;
    font-size: 20px;
    box-sizing: border-box;
}

.playground-body {
    margin: 10px;
}