User-893317190 posted
Hi Tom4IT ,
You specify absolute width and height like 660px , 10px.
If you want responsive effect, you could try vw and vh , which means relative width and height to viewport.
For example , if you write 50vw , its width will be 50% of viewport width.
So you could write your css as follows.
<style type="text/css">
.auto-style1 {
width: 30vw;
height: 10vh;
}
.auto-style4 {
width: 10vw;
height:10vh;
}
.auto-style5 {
width: 60vw;
height: 10vh;
}
</style>
Below is the result of desktop.

For more information about vw and vh, please refer to
https://web-design-weekly.com/2014/11/18/viewport-units-vw-vh-vmin-vmax/
You could also use bootstrap for a responsive effect.
https://getbootstrap.com/docs/4.3/layout/grid/
Best regards,
Ackerly Xu