Element block pseudo-element :before generated with font-weight normal font-size 16px height 0px z-index auto position static padding 0px transform cursor default 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) box-sizing content-box border-radius width 50px line-height 1 float none background transition display block margin 0px overflow hidden