Description

The renderings might move around in the pop-up Select a Rendering window when hovering over or selecting a rendering. The issue occurs in the Experience Editor when adding a component to a page, only if the zoom level of the browser page is other than 100%.

Solution

To address the issue:

1. Open the [your_website]\sitecore\shell\Themes\Standard\Default\SelectItemWithThumbnails.css file.
2. Remove the border and padding attributes from the elements a.scItemThumbnail:hover and a.scItemThumbnailSelected, as shown below:
   

   a.scItemThumbnail:hover
   {
     background-color: #E8F5FD;
     border: 1px solid #D8F0FA;  
     padding: 4px 11px;
     text-decoration: none;
   }
   
   a.scItemThumbnailSelected  
   {
     background-color: #D5EFFC;
     border: 1px solid #99DEFD; 
     padding: 4px 11px; 
   }

3. Save the changes and clear the browser cache.