html, body {
    margin: 0
}
body {
    background: #f6f6f6;
    user-select: none;
    text-align: center;
    width: 100%;
    height: 100%;
    overflow: hidden
}
hr {
    width: 80%
}
h1 {
    font-size: 2em
}
.container {
    padding: 25px 15px;
    margin: 0 auto
}
.pad {
    display: inline-block;
    width: 30px
}
.mt {
    margin-top: 50px;
}