I'm using Sitecore CMS placeholders for inserting controls into our layout.
<sc:Placeholder ID="plhContentPage" Key="content-page" runat="server" />
But when page is in edit mode it leads to borders outside of this placeholders (see screenshot).
This leads to various artifacts related to our page.
Is there a way to disable this border in page editor mode, because they are not useful for our users.
You need to un-tick the 'Controls' tickbox in the 'View' tab of the page editor.
If you need to edit the CSS styles that the page editor uses then you can look at the
webedit.css
which should be located in the root of your website.