/* not use relative path for accessing resources in external css but you can
use <?= $this->baseUrl(); ?> in interal css */
body{
margin:0px;
padding:0px;
}
#comp-header{
position:relative;
height:70px;
  }
  
  #main-menu{
  position:relative;
  width:100%;
  background-color:#CFDEFF;
    }

   #container{
  background-color:#FFF;

}