header{
    background-color: #202324;
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
    color: whitesmoke;
}

#TopNav{
    background-color: #333;
    padding: 15px;
    margin: 0px;
    list-style-type: none;
    border-radius: 10px;
}

#TopNav li{
    padding: 0px 10px;
    margin: 10px;
    border-radius: 10px;
    display: inline;
    
}

#TopNav a{
    color: whitesmoke;
    text-decoration: none;
}

body{
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #202020; 
}

section{
    margin: 10px;
    padding: 30px;
    background-color: #fff;
    border-radius: 30px;
}

.main{
    margin: 10px;
    padding: 30px;
    background-color: transparent;
    border-radius: 30px;
    color: whitesmoke;
    
}

.center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
}