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