Element block pseudo-element :before generated with z-index auto border 2px rgba(0,0,0,1) solid height auto border-radius transition cursor default box-shadow 1px 1px 1px rgba(0,0,0,0.3) background font-weight normal display block position static overflow hidden float none line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) width 160px padding 20px transform font-size 16px box-sizing content-box margin 0px