Can we give height related to width ?

Question

Eg. width:80%;
height:same as width;
or 70% of width;

Since screen sizes differ from phone to phone but can the ratio be the same

JavaScript or any CSS method ?

Answer 1

This can help :- In Jquery

var cw = $('div').width();
$('div').css({'height':cw+'px'});

Answer 2

maybe using vh values for the width?
g2g is view heigh.