CSS: Modern Image Replacement 2014

.hide-text {
  text-indent: 100%;
  white-space: nowrap;
  overflow: hidden;
}

/* Scott Kellum Technique - Reference: http://www.zeldman.com/2012/03/01/replacing-the-9999px-hack-new-image-replacement/ */

Use this for SEO/Accessability Friendly

.screen-reader-text {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

/* Reference: https://github.com/h5bp/html5-boilerplate/blob/master/css/main.css */