title: Sprite to cater for multi device sizes vs Media query for individual images
body: <p>We need to build a responsive mobile site that will cover sizes from 300 width to Tablet high def. </p>
  
  <p>We are considering using a sprite for all icons (12 icons in total) to reduce image size - combined with media queries (3 sprites to scale down for each device).</p>
  
  <p>Does anyone have any experience with this approach and if so could offer any disadvantages we may run into?  </p>
  
  <p>I'm worried that older Android phones may struggle with Rendering/scaling a large sprite?</p>