Template Designer: Add Style With Custom CSS Code Snippet For Blogger

Modifying your blog appearance usually requires you to edit your template’s existing CSS (Cascading Style Sheet) code or adding new codes.
To add a CSS code snippet, you go to Design > Edit HTML page and insert the code in the CSS section of the template.
That’s what you would do if you are using a regular layout template. However if you use the new Designer Template, there is another way. You can do it right from the inside of Template Designer.