text-overflow的意思|示意

Instead of just cutting the text off like you would see in older browsers, you get a nice ellipsis (...) effect by setting the text-overflow style.

与在一些较老的浏览器中看到的那样直接截除文本相反，通过设置text - overflow样式可以获得一个美观的省略号(…)效果。

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。

You also used the text overflow styling on the aside.

您还在aside上使用了文本溢出样式。

Does it exceed a certain length, so that the presentation of that text doesn't overflow into some other element on the page?

内容是否会超过特定的长度，使文本显示未能填充到页面的某些元素中？

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。