In this setup
<div class="a">
</div>
.a {
   width: 400px;
   height: 600px;
}
- if the screen resolution is 1600*1200, will the div's width be 25% of the screen in the browser ? 
- if the screen resolution is 4000*2400, will the div's width be 10% of the screen in the browser ? 
I want to be always 25%.
If I use percent to set the width, div will shrink automatically when browser is not in full screen.
 
     
     
    