css3 border-radius property css3 box-shadow property css3 border-image property css3 background-size property css3 background-origin property css3 text-shadow property css3 word-wrap attribute css3 transition property css3 resize attribute css3 box-sizing property css3 Outline Offset property css3 @keyframes attribute css3 animation properties css3 animation-name property css3 animation-duration attribute css3 animation-timing-function attribute css3 animation-delay property css3 animation-iteration-count attribute css3 animation-direction attribute css3 animation-play-state attribute css3 animation-fill-mode property css3 opacity property