Solution to the overall left-leaning problem of PHP dynamic pages in IE-based browsers_PHP Tutorial

I discovered a strange problem today. When the static page is previewed locally, it displays normally in each browser. But when it became a dynamic page in PHP, I found that the page was overall shifted to the left under the IE kernel browser.
After working on it for most of the day, I didn't find any reason. It took up two programmers for most of the day, which is really embarrassing. Later, I continued to search and finally discovered the reason. It turned out that the two guys wrote comments above