Element block pseudo-class :hover generated with outline none height 520px float none width 400px line-height 1 box-sizing content-box margin auto padding 50px z-index auto border-radius overflow hidden cursor default font-size 16px text-shadow position fixed transform font-weight normal opacity 1 transition display inline-block border 2px rgba(191,191,191,1) solid background box-shadow 10px 10px 20px rgba(0,0,0,0.25)