Open the page with a solid color background in IE browser and press F11 for the full-screen background page, and a white horizontal bar will appear at the bottom_html/css_WEB-ITnose

ie html browser

Reply to the discussion (solution)

Is anyone here to take a look!

That is the status bar
Right-click the menu bar to cancel the status bar
or set it when opening a web page
or set window.open("","" when using window.open ,"status=no")

That is the status bar
Right-click the menu bar to cancel the status bar
or set it when opening a web page
or set the window when using window.open. open("","","status=no")

After I opened the browser and unchecked the menu, there is still this white banner, which is not there if I use Google Chrome.

Quoting the reply from datiexiong on the 2nd floor: That is the status bar
Just right-click the menu bar to cancel the status bar
or set it when opening the webpage
or set the window when using window.open. open("","","status=no")

After I opened the browser and unchecked the menu, there is still this white banner, which is not there if I use Google Chrome.
There is no white bar when the status bar is removed

Quoting the reply from limingyulw on the 3rd floor: Quoting the reply from datiexiong on the 2nd floor: That is the status bar
Right-click the menu bar to cancel the status bar
or Set
when opening a web page or set window.open("","","status=no")

when using window.open. I opened the browser and unchecked the menu, but the problem still persists. This white banner is not available if you use Google Chrome.
Remove the status bar and there will be no white bar.

…
After pressing F11, it will be obvious that there is a bar below. I don’t know what happened, but I made a BS software and it looks ugly if I don’t remove it!