So when you scroll the page to show the invisible part, the DIV is not big enough, causing the text to overflow.

所以，当滚动页面以查看不可见部分时，DIV不够大，导致文本溢出。

youdao

You also used the text overflow styling on the aside.

您还在aside上使用了文本溢出样式。

youdao

Also important is the number of layers (Z-index) that can be placed on a Web page to accommodate the overflow of the expanded text and more intensive graphic images.

(z索引的)层次数目也是很重要的，这些层可以放在Web页面上用于调整扩展文字和更密集图形图像的溢出。

youdao