Semantic UI is an open-source framework that uses CSS and jQuery to build great user interfaces. It is the same as a bootstrap for use and has great different elements to use to make your website look more amazing. It uses a class to add CSS to the elements.

Menu is an excellent way to group items that navigate to various pages. The menu is an essential part of every website as it helps us navigate through various web pages. Semantic UI provides us with a custom-styled Menu. We can make the items in the menu borderless in Semantic UI using the borderless class.

Semantic UI Menu Borderless Variation Classes:

• borderless: Removes the border from the menu items.

Syntax:

<div class="ui borderless menu">
  <a class="item">Item Name</a>
  ...
</div>

Example 1: In the below example, we have created a standard borderless menu.

Output:

Semantic-UI Menu Borderless Variation

Example 2: In the below example, we have created a borderless vertical menu.

Output:

Vertical Borderless Menu

Reference: https://semantic-ui.com/collections/menu.html#borderless