The dots under IE8 and Google Chrome actually went to the right_html/css_WEB-ITnose

height:auto; resulting in

.jdxw .news li{margin-top:5px; margin-right:6px; height:auto;}
Remove height:auto;

height:auto; caused by

I don’t know why.. It still doesn’t work in the original webpage.. This simplified code does work.
I have All codes involving ul, li, and related divs have been dug out...

Got it. The a inside is floating to the left, causing the dot to be stuck to the right
It seems that the dot should be a character inserted into li by the HTML parser after the list-style-type:disc style rule is defined. The element is juxtaposed with a and my other span (date) in the li, and a has become cloudy, causing it to float to the right.

But the Firefox browser does not interpret it as a li. The element (prefix symbol...) is just a symbol drawn to the left of li. This is how I understand it.

So, I floated li to the left, canceled the floating of a, and separated the date span. Float to the right, and wrap a p or something in the outer layer... Anyway, just don't float it in li.