展开 block : CSS1 块对象的默认值。用该值为对象之后添加新行 none : CSS1 隐藏对象。与visibility属性的hidden值不同,其不为被隐藏的对象保留其物理空间 注意: 在火狐浏览器 可能有问题 问题: 在Firefox中执行后"display:none;"没有回收"display:block;"开辟的页面空间, 下次再执行"display:block;"又会在页面上重新创建显示空间。 原因: The reason it "appears" to work with IE is probably because IE is error-correcting the display property for you.As others have implied, IE has no concept of the table-row value. In fact,Microsoft's documentation (<URL:http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/display.asp>) clearly states that all block-like elements (with a few exceptions) have 'block' as their display value, contrary to specification. 解决: 在Firefox中,这行吧block 改成 table-row 就可以用。但是在IE又不能用了,所以 将代码 msg.style.display="block"; 修改为 msg.style.display=""; |
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