There are two options. Both require some code knowledge:
1. if you have created your page via admin panel>>pages&menus, and you have used "page content" field to add content, then you will need to modify source code of widgets in questions. This is custom code modification and unfortunately I can not give detailed instructions.
2. if you create your page "outside" of Oxwall.
- create .html file with desired content
-upload the file to your server
- add following rewrite condition into Oxwall's .htaccess file right before RewriteCond %{REQUEST_URI} !^/index\.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !^/index\.php
- in admin panel>>pages&menus create a new page. Use "External URL" as "Page Address". Depending on where you have uploaded your .html file, address will be something like: yoursitename.com/file-name-here.html .
If everything is done properly, new menu item will appear on either footer or header of your site. If you click on it you will be redirected to the specified external URL yoursitename.com/file-name-here.html . Since this is external page you won't have any standard Oxwall widgets. You will see only the content of the .html file.
Downside of this option, is that header, footer, background and etc. used on all standard Oxwall pages will not be shown, unless you add the .html code for this blocks into the .html file you have created.