Good evening Richard and welcome to the Events Calendar forum!
Thank you for your interest in our products.
We’ll be glad to answer your questions.
It looks like on of the CSS rules in your theme is causing this.
You could either:
- Try playing around with the different settings for styling under Events -> Settings -> Display to see if that helps OR
- Write a CSS rule to counter the effect of your theme’s rule
Try adding the following CSS rule to your style.css file or in your Custom CSS metabox:
.tribe-events-calendar .col-lg-3 {width: 100% !important;}
Let me know how that goes.
Best regards,
Geoff B.