body { 
    margin-left: 5%; 
    margin-top: 1%; 
    margin-right: 5%; 
    font-family: sans-serif
}
table {
    background-color: #FFFFFF;
}
pre {
    background: #DDDDDD;
    white-space: pre; 
    margin: 1em;
    padding: 0.5em;
    border: none;
}