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