body, html{
    background-color: rgb(255, 255, 255); 
    font-family: Arial, Helvetica, sans-serif;
    color: darkblue;
    width: 100%;
    margin: 0;
}

li{

    list-style: none;

}

footer{ 
    background-color: rgb(39, 91, 187);
    color: white;
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 50px;
    text-align: center;
    line-height: 50px   ;
}

h1{
    font-family: 'Courier New', Courier, monospace;
    color: rgb(39, 91, 187);
    text-align: center;

}

button{
    width: 150px;
    height: 50px;
    border: none;
    background-color: rgb(39, 91, 187);
    color: white;
}

button:hover{
    color: rgb(39, 91, 187);
    background-color: rgb(194, 208, 248);
    font-weight: bold;
}

#operator{
    text-align: center;
    font-weight: bold;
    font-size: 50px;

}

div{
    text-align: center;

}

#home{
float: left;

}
#menu{
text-align: center;

}

input{
text-align: center;

}

#uitkomst{ /*css voor geadvanceerd*/
    color: rgb(12, 12, 129);
    font-size: 20px;
    text-align: left;
    margin-left: 500px;
        
}

#total{ /* css voor de eenvoudig*/
    color: rgb(12, 12, 129);
    font-size: 60px;
}

#antwoord{
    background-color: yellowgreen;
    font-weight: bold;
    font-size: 50px;
}

#melding{
    font-size: 20px;
    font-weight: bold;

}