Element button pseudo-element :after generated with transform z-index auto border 0px rgba(0,0,0,1) solid width 160px font-weight normal position relative line-height 1 box-sizing border-box display block overflow visible border-radius float left margin 0px box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition padding 20px cursor default font-size 16px background text-shadow 1px 1px 1px rgba(0,0,0,0.2) height 0px