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