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