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