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