What's wrong with this CSS?

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AI-generated summary

Erik_Manger is experiencing an issue with his CSS code for Discourse backgrounds, where the image doesn’t scroll down and a white background appears instead. He provided the CSS code for the background and mentioned that the category background feature won’t work without a white background for topics.

simon suggested setting any wrapper elements inside the body to min-height: 100%, which he achieved by setting section#main{min-height: 100%}. He also recommended using the browser’s web inspector to try out changes.

However, it was Qasem_h who provided the solution. He suggested that the issue was with the body:before pseudo-element being set to position: fixed, which prevents it from scrolling with the page. He provided a revised version of the CSS code, which Erik_Manger confirmed worked perfectly.

Qasem_h was thanked by Erik_Manger for his help.

1

Hi,

I have a CSS code for Discourse backgrounds. The problem is, when I scroll down, the image doesn’t scroll down - rather, a white background appears and covers the wallpaper…

    html, body {
    height: 100%;
}

// solid white background for content
body:before {
    display: inline-block;
    width: 1125px;
    min-height: 100%;
    height: inherit;
    background-color: white;
    content: " ";
    position: fixed;
    left: 50%;
    right: 0;
    transform: translate(-50%, 0);
    -webkit-transform: translate(-50%, 0);
}

// compatibility for all devices
@media (max-width: 1139px) and (min-width: 1000px)
{
    body:before {
        width: 1010px;
    }
}

.d-header {
    box-shadow: none;
}

body {
  background: url('http://minecraftrad.io/images/bg1.jpg') no-repeat 50% 50% fixed; 
  background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  -webkit-background-size: cover;
}

What’s wrong with it? The category background feature wont work because there is no white background for topics, etc. and it just simply looks bad.

All help appreciated!

2

I think you need to also set any wrapper elements inside of the body to min-height: 100%.
I set section#main{min-height: 100%} to get this to work.

Screenshot 2015-05-06 11.58.02.png1257×704 135 KB

In case you aren’t already doing it, you can try these kinds of things inside of your browser’s web inspector. On Chrome, right click on a page and select ‘inspect element’. It’s a lot easier if you have 2 monitors, You can detach the inspector window and have enough room to see what is going on and try things out.

3

TRY THIS CODE

    // solid white background for content
    body:before {
        display: inline-block;
        width: 1125px;
        min-height: 100%;
        height: inherit;
        background-color: white;
        content: " ";
        position: fixed;
        left: 50%;
        right: 0;
        transform: translate(-50%, 0);
        -webkit-transform: translate(-50%, 0);
    }
    
    // compatibility for all devices
    @media (max-width: 1139px) and (min-width: 1000px)
    {
        body:before {
            width: 1010px;
        }
    }
    
    .d-header {
        box-shadow: none;
    }
    
    body {
      background: url('http://minecraftrad.io/images/bg1.jpg') no-repeat 50% 50% fixed; 
      background-size: cover;
      -moz-background-size: cover;
      -o-background-size: cover;
      -webkit-background-size: cover;

}

JUST FOR BACKGROUND YOU NEED FOR THIS

body {
          background: url('http://minecraftrad.io/images/bg1.jpg') no-repeat 50% 50% fixed; 
          background-size: cover;
          -moz-background-size: cover;
          -o-background-size: cover;
          -webkit-background-size: cover;
 }
4

THANK YOU THANK YOU THANK YOU!

You’re awesome, works perfectly!

5

Your welcome @Erik_Manger