How to make widgets visible only on the index?

Hello, can someone help me making my widgets visisible only on the Index?
I have tried a few codes, but when I leave the index there remains a white space in the place of the widgets.
My forum version is phpbb3.

can you provide a sceenshot for your problem? or post your forum link

Okay, so.
How the Widgets look on the index. (They look perfect)


How the widgets look when I leave the Index. ( I want to get rid of that whitespace )


How I want it to look when I leave the Index
https://2img.net/r/ihimizer/img94/5807/screenshot0505201320043.png

1. Go to ACP > Display > Pictures and Colors > Colors > CSS:
- If your widget is on the right side, put this one:

Code:

#content-container div#right {
  display: none;
}

- Now add this to remove the white space.

Code:

#content-container div#content {
  margin-right: 0;
}

2. Now go to your homepage message:
- If your widget is on the right side, put this one:

Code:

<style>
#content-container div#right {
display: inline !important;
  }
#content-container div#content {
margin-right: 180px !important;
  }
</style>

God, you`re a wizzard! Thank you , problem solved.
I had to tweak the code a bit, now it works perfectly.!