Open the edit mode by clicking on edit top left. Then right click on the element you wish to delete, photos/ videos will remain available from the library. 

Old editor

There are two ways to delete a photo/ video or element from your album, make sure you are logged in and viewing an album of your own:

• Right click a photo/ video or element and choose 'Delete'.
• In the ' Edit and enrich' mode   click on the photo/ video or element and then on the 'trashcan' at the bottom of the 'enrich bar' that appears to the left.