Inner Border in Images Using css

Inner Border or outline in Images Using CSS/HTML

img {
  outline: 1px solid white;
  outline-offset: -4px;

}
IE9&10 do not support the outline-offset property, but otherwise support is good:

Alternate solution that doesn't require knowing the dimensions of the image:

<div class="ie-container"><img src="" /></div>

div.ie-container {
  display: inline-block;
  position: relative;
}

div.ie-container:before {
  display: block;
  content: '';
  position: absolute;
  top: 4px;
  right: 4px;
  bottom: 4px;
  left: 4px;
  border: 1px solid white;
}

img {
  vertical-align: middle; /* optional */
}