img#zalving {
    float: left;
    margin-right: 2%;
    width: 30%;
    height: auto;
}

img#sprankels {
    float: right;
    margin-left: 2%;
    width: 10%;
    height: auto;
}

div#opening > p {
    text-align: left;
}

a.linken {
    color: yellow;
    background-color: darkred;
    border: 2px solid darkblue;
    border-radius: 30px; 
}