您可以避免由 display：none; ，使用 visibility：hidden; 。使用 visibility：visible; 以使其可见。

You can avoid the width issue caused by display: none; by using visibility: hidden; instead. Use visibility: visible; to make it visible.

元素保留在您的内容流。），而它只是看不见。

The element stays within your content flow (same size, etc.) while it's simply invisible.