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