Home page background

[Qclothing]

Hello, I have an issue with home page. There's a random image built it, it's just there there behind all my panels. It's visible like through a window and stays in place when you scroll up and down so you can see different parts of that image. How do I remove it/replace with another picture please? Screenshots below.

EDIT: Pictures in post are not showing for some reason, please have a look here:
http://prntscr.com/241ia7q
http://prntscr.com/241ichg

[Qclothing]

http://prntscr.com/241ia7q
http://prntscr.com/241ichg

[Sanjay Jethva · Accepted solution]

@Qclothing 

You can use the parallax CSS effect in order to achieve the mentioned requirement:

You may use the below reference:

<style>
.parallax {
  /* The image used */
  background-image: url("img_parallax.jpg");

  /* Set a specific height */
  min-height: 500px; 

  /* Create the parallax scrolling effect */
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}
</style>

<p>Scroll Up and Down this page to see the parallax scrolling effect.</p>

<div class="parallax"></div>

<div style="height:1000px;background-color:red;font-size:36px">
Scroll Up and Down this page to see the parallax scrolling effect.
This div is just here to enable scrolling.
Tip: Try to remove the background-attachment property to remove the scrolling effect.
</div>

[Qclothing]

Thank you Sanjay, I'll try that.