Element button pseudo-element :after generated with padding 20px z-index auto border 1px rgb(51, 51, 51) solid margin 0px text-shadow -1px -1px 0px rgb(51, 51, 51,1) font-size 16px height auto overflow visible line-height normal box-sizing content-box width auto outline none float none transform border-radius position static opacity 1 background box-shadow 2px 2px 2px rgba(0,0,0,0.2) transition cursor pointer font-weight normal display inline-block