* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

html {
    font-size: 62.5%;
}

body {
    font-family: helvetica;
    margin: 63px 0 0 0;
}

#header, #footer {
    background-color: black;
    font-size: 2rem;
    letter-spacing: 3px;
    color: white;
    position: absolute;
    width: 100%;
    text-align: center;
    padding: 20px 0;
}

#header {
    top: 0;
}

#footer {
    bottom: 0;
    font-size: 1.6rem;
}

#header a {
    text-decoration: none;
    color: inherit;
    padding-right: 15px;
}

#header a:hover {
    background-color: green;
    padding: 20px 3px;
}

#section-one {
    background-color: lightgrey;
    padding: 50px 0;
    text-align: center;
}

h1 {
    font-size: 4rem;
    letter-spacing: 3px;
}

small {
    font-size: 2rem;
    letter-spacing: 5px;
}

hr {
    margin: 10px 400px;
    background-color: red;
}

#section-two {
    padding: 0 300px;
}

.left, .right {
    width: 50%;
    display: inline-block;
    font-size: 1.5rem;
}

.left {
    float: left;
    text-align: left;
}

.right {
    float: right;
    text-align: right;
}