Change colour of post title

Hi,
maybe someone can help.

Our school website is https://www.stfranciscollege-rochestown.ie

I would like to change the colour of one of the post titles to red.

It is the text ‘Learner Driver Advice’ below the ‘Latest News’ on the right that I want to change. I want to leave the other ones below it as they are.

Could someone tell me how to do it or where to find the relevant html code so that I can change it.

Thanks
Denis