Rally Template - I can't Justify <p> class

Site URL: https://www.institut-misifus.com/accueil

Hi,

I'm currently working on this website : https://www.institut-misifus.com/accueil

And it's driving me crazy because I can't manage to justify the text.

I tried everything, inserting it in the html and css, doesn't work
 

<style>
  
  p {
text-align: justify!important;
text-justify: inter-word!important;
}

</style>

Actually the only time I managed to make it work it's when I insert code blocks and insert the style in the html:

<p style="text-align:justify;"> bla bla bla </p>

But I need to be able to implement it to the overall website, especially in the .summary-excerpt

Thanks a billion to the one that will help me with this  🙏

Above isn't CSS code. If you insert it into Custom CSS, it won't work.

Add this to Home > Design > Custom CSS

p {
text-align: justify !important;
text-justify: inter-word !important;
}