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