#Container {
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    align-self: center;
    height: 100vh;

}

header {
    background-color: blue;
    color: white;
    padding: 0;
}

main {
    flex:1;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: row;
    overflow: scroll;
    margin: 0;
    
}

#content{
    flex: 1;
    margin: 0;
}

.inklap
{
    width: 0;
}

.vol
{
    width: 150px;
}

#LeftAsideBTN {
    background-color: darkgray;
    width: 15px;
    text-align: center;

}

#LeftAside, #RightAside {
    background-color: gray ;
    color: white;

}

#RightAside {
    width: 150px;
}

body {
    background-image: url("http://csp1.tiemcomeernik.nl/IMG/1018.png") ;
    margin: 0;
}

footer {
    background-color: blue;
    color: white;
    
}


header, nav, main, footer {
    
    width: 800px;
    align-self: center;
}