This is the content div, which is inside the container. It is first in the source. It contains some sentences here, just to make it a bit bigger and demonstrate better how it works. As you can see, it stretches between both menus, no matter how you resize your browser window. As you can also see, this layout looks extremely ugly like this; in a real case you would put in some fonts, nicer colors that don't clash as much, some pretty pictures, and paddings.

This is the first menu, which is also inside the container. It is second in the source. It contains some text, but would most likely contain a list of links or something like that.

This is the second menu, which is (surprise, surprise) inside the container too. It is third in the source. It also contains some text.