I don’t know how to call it, Bar, Tool or Toolbar? But I don’t know how to move it to the top. This problem always happen when I open an older file from Blender 2.7x in Blender 2.8. I frequently do that because I use Blender 2.7x because it’s Blender Internal Renderer is 10 times faster than Cycles, but that doesn’t mean that I don’t like Eevee.
Image is edited: N-panel --> T-panel