body{
    background-color: lightblue;
    font-family: Arial, Helvetica, sans-serif;
    
}
h2{
    text-decoration: underline;
    text-align: center;
    font-size: xx-large;
}
h3{
    font-weight: bold;
    background-color: rgb(29, 181, 231);
}
pre{
    font-family: Arial, Helvetica, sans-serif;
    font-style: italic;
}