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