Check out example codes for "fixed footer in css". It will help you in understanding the concepts better.

Code Example 1

<style>
.footer {
  position: fixed;
  left: 
  0;
  bottom: 0;
  width: 100%;  
  background-color: red;
  color: white;
  text-align: center;
}
</style>
<div class="footer">
  <p>Footer</p>
  </div>

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