Instead of showing the whole text paragraph from the post entry, here is how you can limit the character count. Select the text class container/wrapper and apply this CSS snippet.
The Block, Element, Modifier methodology (commonly referred to as BEM) is a popular naming convention for classes in HTML and CSS. Developed by the team at Yandex, its goal is to help developers better understand the relationship between HTML and CSS in a given project. Great reference article about BEM: https://css-tricks.com/bem-101/