CodePen

HTML

            
              <img class="papa" src="http://s.cdpn.io/3/kiwi.svg">

<img class="mama"  src="http://s.cdpn.io/3/kiwi.svg">

<img class="baby"  src="http://s.cdpn.io/3/kiwi.svg">
            
          
!
via HTML Inspector

CSS

            
              .papa {
  width: 250px;
}

.mama {
  width: 100px; 
}

.baby {
  width: 50px; 
}

img {
  vertical-align: top;
}

body {
  padding: 20px; 
}
            
          
!
? ?
? ?
Must be a valid URL.
+ add another resource
via CSS Lint

JS

            
              
            
          
!
Must be a valid URL.
+ add another resource
via JS Hint
Loading ..................