Glitching on mobile devices

Hello, I’m experiencing some minor problems in my blog when I open on a mobile device.

Use the PageBuilder, and make use of Recent Posts in 5 categories on the home page. By opening with a mobile device, the images plugin Recent Posts are left with varying sizes. What could I do so that all obey a definite and absolute size?

You can see better if they open the site in a mobile phone or tablet – http://www.galaxia.blog.br

Congratulations for the great plugin!

Hugs !

https://ww.wp.xz.cn/plugins/recent-posts-widget-with-thumbnails/