Prestige Theme - Read more/ read less option for long text

[AurelieMA]

Hello!

Does anyone tried to include a read more/read less option to make long text more convinient? I tried a tutorial but it does not worked for Prestige Theme.

The read more option appears but the text does not show up when clicked...

Any solution to share? 

Thanks a million!

[KetanKumar]

@AurelieMA 

Thanks for post 

are you able to code so please try this https://codepen.io/royketelaar/pen/avWxve or let me know it can be done some custom code so please sent a personal message.

[AurelieMA]

thank a lot! 
Unfortunately it is not working

Here is my HTML;

And the result

[AurelieMA]

Actually, I am wondering if it may it be easier to make this "similar" result code:

Underline a Title or phrase that expend a bigger text if clicked.

This would even be better actually