CSS Div füllen Sie die ganze Seite aus
div {
height: 100vh;
width: 100vw;
}
Light Lemur
div {
height: 100vh;
width: 100vw;
}.section{
position: absolute /*relative and fixed elements also works*/;
top: 0;
bottom: 0;
left: 0;
right: 0;
}