Element block pseudo-element :before generated with overflow hidden font-size 16px transform width 75% border-radius float none display block border 0px rgba(0,0,0,1) solid text-shadow 1px 1px 1px rgba(0,0,0,0.2) position relative transition cursor default height auto z-index box-shadow 1px 1px 1px rgba(0,0,0,0.3) background line-height normal font-weight normal margin auto box-sizing content-box padding auto