I have a div that has a left border with the following style: border-left: 3px solid #F90;
Now, I want the border to fade out gradually from top to bottom, going from full opacity at the top to completely transparent at the bottom. However, my attempt using a linear gradient did not produce the desired effect.
border-left: linear-gradient(to bottom, rgba(255,153,0,1), rgba(255,153,0,0));
UPDATE: It seems that this type of fading can be achieved by using a background image on an <hr> element, applied from left to right.