区别一：
display:noneTurns off the display of an element (it has no effect on layout); all child elements also have their display turned off. //隐藏这个元素;所有的子元素也跟着他隐藏.visibility:hiddenThe box is invisible (fully transparent, nothing is drawn), but still affects layout. Descendants of the element will be visible if they have visibility:visible
(this doesn't work in IE up to version 7).
//这个容器不可见(完全透明),但占有布局.后代(子)元素将会显示,如果设有visible属性区别二：
display为none时,元素不占用页面流,就好像该元素不存在一样.
visibility为hidden时,仍然占用页面流,也就是这块区域虽然不可见,但是占据一块空间.
visibility为hidden时,仍然占用页面流,也就是这块区域虽然不可见,但是占据一块空间.