Answers for "box shadow just left"

css box shadow right and down

.myDiv
{
  border: 1px solid #333;
  width: 100px;
  height: 100px;
  box-shadow: 10px 0 5px -2px #888;
}

box-shadow left right and bottom

-moz-box-shadow: 0px 3px 8px rgb(100,100,100);
-webkit-box-shadow: 0px 3px 8px rgb(100,100,100);
box-shadow: 0px 3px 8px rgb(100,100,100);