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