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