.intro{
    border: solid;
    border-color: red;
    color: black;
    font-size: 55 px;
}


.header{
    background-color:cornflowerblue;
    color: black;
    font-size: 100 px;
}


.buttons{
    border: solid;
    border-color: deepskyblue;
}


.list{
    background-color:cornflowerblue;
    color: black;
    font-size: 38 px;
    margin-left: 100 px;
    margin-right: 100 px;
}


.topicsheader{
    background-color: red;
    color: black;
    font-size: 45 px;
}


.back{
    border: solid;
    border-color: red;
}