change background color in CSS iframe


Can anyone help me with changing the CSS?

I know a little css, when I change the background color, than also the background color in the "reply-box" (iframe) changes. Does anyone know how to prevent this or how to change the this background color?

Thx in advance!


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  • Hi Bart , thanks for your question! To change the background color, target #top in your css rather than the body class. This prevents the background color of the reply box from being changed. Here is the CSS:

    #top {
      background-color: #f2f4f5;

    We have applied this CSS to your account. If you would like additional styling changes feel free to contact support@forumbee.com . We are happy to help you customize your CSS.

    Like 1
  • Hi. I would like to change color to a pinned topic - just to make it more easy for the users to see that this is an instruction (most important in the header - seen in the list of topics). I tried to change body background in the topic source but it seems that it was stripped.

    • Hi Carola, thanks for your post! I can see that your question was already resolved through email. However, for others in the community who may have the same question, the background color of the pinned topic can be changed by adding CSS into Admin > Themes > CSS. Here is the example CSS code:

      .topic-summary.-pinned {
          background-color: #E5F6FF;
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