Do I have to specify position for my footer? It comes up in the page where my page content ends even halfway through the page

Question

I am developing my 2nd web page and I decided to use footer but it never goes down to the bottom of the page, if I need to do that please help me sort this out

Answer 1

Poor me, the code is in my pc, pls if you can help with any suggestion, I am most grateful @Charan