Why is the webpage not full screen? How to set the webpage full screen method

Today, the webpage opened by Xiaobian is not full screen. To maximize the screen, you have to maximize the top right corner. Where is the setting, open webpage is full screen? ? As shown below:

studied for a long time, only to find that the problem is provided IE! And found out three solutions. Solution One Open a new IE window, manually drag it to the maximum, and press shift to turn it off. Solution 2 1. Click the “Start” menu, click “Run”, enter ““Regedit” in the command input box and press ““Enter” to confirm the registry editor. 2. Edit in the registry. In the device, find the node HKEY_CURRENT_USER\\\\Software\\\\Microsoft\\\\Internet Explorer\\\\Main, delete the “Window_Placement” key in the right window; 3. Find the node HKEY_CURRENT_USER\\\\Software\\\\Microsoft\\\\Internet Explorer\\\\Desktop \\\\Old Work-Areas, delete the “OldWorkAreaRects” key in the right window. 4. Close the registry, restart the computer, and maximize the IE window twice in a row (“maximize”→“restore”→ “Maximize”), restart IE again to solve the problem. Solution 3 Right click on the IE icon in the quick launch bar in the lower left corner, select Properties, and change the running mode to maximize. I suggest you use the first and third methods! The second one is a bit troublesome! good luck!