Custom CSS to make all Youtube embeds responsive (including in edit mode). I chose to make it override every single YouTube embed, because I can't remember the last time I embedded a video and didn't want it to be responsive.
How to enable the font size, font family and font color selector plugins in redactor and also a fix to the inlineRemoveStyle that doesn't work in Concrete5's redactor .js
Redactor has some functionality which is only available using keyboard shortcuts by default. This how-to shows how to add buttons for undo, redo, superscript and subscript to the toolbar;
How to enable database based session storage in concrete5.7.
concrete5 5.7 stopped using ADODB and uses DBAL instead. if you are building an addon/ or you need to know how to update or insert something into your database more securely with special characters ability. this how-to is for you!
A quick general helper function for logical OR filtering of multi select attributes for user lists, collection lists , file lists or custom lists.
An addon or theme that works beautifully and obviously for the developer may not be robust, easy or user-proof enough for the marketplace. Here are some of the common technical issues.
When you use the same form block across multiple pages, knowing which page a response was submitted from may be important.