This ghost button has a nice premium look to it and will look great on websites with a dark background. It was designed by Daniel Box. In this snippet links are designed to look like buttons using pure CSS and when you hover over them you get a gradient slowly filling in from the right and when you move the mouse away from the button the gradient slowly rolls back.
If you are having trouble with the pen, try the archived copy on GitHub
Luxury Ghost Button Snippet
See the Pen luxury buttons by Daniel Box (@dbox) on CodePen.0