CODE EXAMPLE FOR CSS

@media tablet and mobile view

@media (min-width:320px)  {
  /* smartphones, iPhone, portrait 480x320 phones */ 
}
@media (min-width:481px)  {
  /* portrait e-readers (Nook/Kindle), smaller tablets @ 600 or @ 640 
  wide. */ 
}
@media (min-width:641px)  {
  /* portrait tablets, portrait iPad, landscape e-readers,
  landscape 800x480 or 854x480 phones */ 
}
@media (min-width:961px)  {
  /* tablet, landscape iPad, lo-res laptops ands desktops */ 
}
@media (min-width:1025px) { 
  /* big landscape tablets, laptops, and desktops */ 
}
@media (min-width:1281px) {
  /* hi-res laptops and desktops */
}