x
1
<marquee direction="down" width="250" height="200" behavior="alternate" style="border:solid">
2
<marquee behavior="alternate">
3
遇到边界会反弹的文本
4
</marquee>
5
</marquee>
6
<marquee direction="down" width="250" height="200" behavior="alternate" style="border:solid">
<marquee behavior="alternate">
遇到边界会反弹的文本
</marquee>
</marquee>