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