Web Front-endHTML TutorialThe difference between display:none; and visibility:hidden;_html/css_WEB-ITnose
如果想让某一段代码在前台不显示，最简单的方法是用css的display:none即可，这样下边的内容就自动上移或右侧的左移来填补这个空隙。但特殊情况下我们只需要隐藏这个元素，
但它的位置不能被占了，那该怎么实现呢？接下来我们来看css的另外一个属性Visibility属性。
visibility:隐藏对应的元素但不挤占该元素原来的空间。
display:隐藏对应的元素并且挤占该元素原来的空间。
来看看下面的这个例子：
XML/HTML代码
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