Vertical border with gradient

border.css

.bot-left { 
  position: relative; 
} 
.bot-left:before, .bot-left:after { 
  content: ""; 
  position: absolute; 
  bottom: 0px; 
  left: 0px; 
} 
.bot-left:before { 
  top: 0px; 
  width: 1px; 
  background-image: -webkit-gradient(linear, 0 100%, 0 0, from(#ccc), to(transparent)); 
  background-image: -webkit-linear-gradient(#ccc, transparent); 
  background-image: -moz-linear-gradient(#ccc, transparent); 
  background-image: -o-linear-gradient(#ccc, transparent); 
}