CSS显示之间的差异：无；和可见性：隐藏；
CSS显示：无；
display：none属性用于隐藏元素而不删除它们。它不占用任何空间。
<!DOCTYPE html>
<html>
<head>
<style>
h3 {
display: none;
}
</style>
</head>
<body>
<h2>This heading is visible</h2>
<h3>This is a hidden heading</h3>
<p>The hidden heading does not take up space even after hiding it since we have used display: none;.</p>
</body>
</html>CSS可见性：隐藏；
可见性：hidden属性也隐藏元素，但会影响布局，即占用空间。让我们看一个例子
<!DOCTYPE html>
<html>
<head>
<style>
h3 {
visibility: hidden;
}
</style>
</head>
<body>
<h2>This heading is visible</h2>
<h3>This is a hidden heading</h3>
<p>The hidden heading takes up space even after hiding it.</p>
</body>
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