Element button pseudo-element :before generated with padding 20px z-index auto box-sizing content-box border-radius transform height auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) width 160px position static background overflow hidden cursor default line-height 1 font-weight normal box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition border 0px rgba(0,0,0,1) solid display block margin 0px float none font-size 16px