How to disable the sidebar on only one page and amplify the main

Dear all
How to disable the sidebar on only one page and amplify the <div>main ?
please refer below picture

just only one page effective.
ACG harmonica tabs.

i want just at one only page effective.

Hello there,

I hope you are doing well today.

You can use the following CSS code to remove the sidebar by going to Appearance > Customize > Additional CSS and pasting it there.

/*Remove sidebar*/ .page-id-3279 div#secondary { display: none; }

.page-id-3279 .main-content-inner.col-sm-12.col-md-8 {
width: 100%;

You need to change the page ID in the CSS code provided to work on your specific page, this link will show you how to find the page id:

Best Regards,

Hi @pitpot,

I hope you are well today and thank you for your question.

You can try achieving this by adding the following CSS code in the Custom CSS option of your theme on the below path.

Admin Area -> Appearance -> Customize -> Additional CSS

.error404 #secondary {
display: none;

.error404 .main-content-inner.col-sm-12.col-md-8 {
width: 100%;

Best Regards,

Thanks all, is effective!

hope you are doing well today.

You are most welcome here :slight_smile:

I now want try use the bbpress, can remove all after that ( website/forums/xxxxx ) post sidebar ?

This topic is resolved so to help us keep support thread separates could you please create new thread for each of your other questions here instead of asking them in your single thread as it makes the thread messy and hard to read.

If you want to you can also add reference of this thread in your newly created thread.

We would be more than happy to help you on your new thread.