header { 
    text-align: center;
}

.left-side { 
    float: left;
    width: 50%;
    margin-left: 15%;
}

.right-side { 
    float: left;
    width: 30%;
}

body { 

    border-style: solid;
    border-color: black;
    font-family: 'Roboto', sans-serif;
}

input { 
    margin: 10px 0;
}

button { 
    margin: 5px;
    text-align: center;
    border-radius: 2px;
    padding: 5px;
    background-color: black;
    color: white;
}