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