html
{
    background-color: lightblue;
    margin: 0;
    padding: 0;
}

#mainTitle
{
    font-family: arial;
    text-decoration: underline;
    text-align: center;
    margin: 0
}
.mainInfo
{
    color: black;
    background-color: red;
    margin: 20%;
    margin: 30px 10%; 
}