HTML: Adding Radio buttons for "Next" and "Previous" pages?

I'm creating a webpage and I have found out how to make it so the viewer can click "next" and be guided to another page. But I don't know how to create a button instead of typing "Next"

My MAIN question though is how do I put "previous" and "next" on the same line at the bottom of the webpage?

So far, I have:
<a href = "page1.html"> previous </a>
<p align = "right"> <a href = "page2.html"> next </a>

But it shows something like this:

Previous........................................................................................
.............................................................................................

(image no dots and at the end of the dots there is the word "next")

Instead of:

Previous..........................................................................