css,区别pc端ipad端的样式

/* 横屏 */

@media all and (orientation:landscape){｝

/* 竖屏 */

@media all and (orientation:portrait){｝

html5 乱码状况时,在head标签里添加

<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<meta http-equiv="pragma" content="no-cache" />