h1 {
    
    font-family: 'Open Sans', sans-serif;
}

h2 {

    font-family: 'Open Sans', sans-serif;
    margin-top: 50px;
}

a {
    
    display: block;
    font-family: 'Open Sans', sans-serif;
    margin-bottom: 20px;
    font-weight: bold;
    text-decoration: none;
}

a:link, a:visited {
    
    color: black;
}

a:hover, a:active {
    
    color: dimgrey;
}

input {
    
    display: block;
    border-left: 4px solid black;
    border-right: 4px solid black;
    border-radius: 6px;
    padding: 10px;
}

pre {
    
    display: block;
    background-color: #121212;
    color: #FFFFFF;
    border-radius: 10px;
    padding: 10px;
    overflow-x: scroll;
    box-shadow: rgba(0, 0, 0, 0.3) 0px 19px 38px, rgba(0, 0, 0, 0.22) 0px 15px 12px;
}

pre:empty {
    
    display: none;
}

#output {
    
    max-width: 50%;
    width: 50%;
    margin: 0 auto;
}

#header {
    
    max-width: 50%;
    width: 50%;
    margin: 0 auto;
}