WordPress Pages and Posts have a number of styling options to make your website sparkle.
We use a plugin called Yoast SEO to manage the search engine descriptions and visibility of your website.
On the relevant pages, you will find a widget that sits below the Content sections of a Page, Post or Category.
To change the title and page description, click into the Snippet Preview where you can enter a description for both. The plugin will give you an indication if you have written too much or too little.