I have an image on top of my screen but I want it on the bottom, below the <H1> tag.
Remember that when you want html in your post, you have to surround it in backticks (the key above ESC) in order to tell the forum to write that text instead of interpreting it. (I did it for you this time.) If you want a block of code, you can put three backticks alone on the line above and another three below the code.
As you your question, we would need to see the code to effectively answer that. Presumably you would just move the image tags below the <H1>, but there are a lot of things that can affect layout so it’s hard to say without seeing the code. If the relevent code is not too big, you can post it here. If it is big you can provide a link to a repo or pen.