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