http://stackoverflow.com/questions/6063308/touch-css-pseudo-class-or-something-similar 

替代touchstart/touchend的一种css方案；手指按下的时候变换样式;

（2）css后面用... 样式: word-break:keep-all; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; text-align:center;

html5 css3 active