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