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