Apply new format to snippets and template

snippets/hasClass.md

@@ -5,7 +5,7 @@ tags: browser,css,beginner
 
 Returns `true` if the element has the specified class, `false` otherwise.
 
-Use `element.classList.contains()` to check if the element has the specified class.
+- Use `element.classList.contains()` to check if the element has the specified class.
 
 ```js
 const hasClass = (el, className) => el.classList.contains(className);
@@ -13,4 +13,4 @@ const hasClass = (el, className) => el.classList.contains(className);
 
 ```js
 hasClass(document.querySelector('p.special'), 'special'); // true
-```
+```