I installed VirtualBox 4.3.28 in Windows 8.1 and am running CentOS 7 within it. But the problem is that VirtualBox is placing a size limit on the frame within which CentOS 7 is visible. Here is a screenshot:
As you can see, I maximized VirtualBox, but there is a lot of white space surrounding the CentOS 7 window. I need to open lots of documents with small text in CentOS.
How can I get rid of the white space so that CentOS 7 fills the entire space available in VirtualBox 4.3.28?