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