html {
    height: 100%;
}

body {
    height: 100%;
    background-color: #f2f2f2;
}

.index {
    text-align: center;
}

.about {
    text-align: center;
}

.index>p,
a {
    text-decoration: none;
    color: #696969;
    font-size: 18px;
}

.about>p,
a {
    text-decoration: none;
    color: #696969;
    font-size: 14px;
}