How to change text size on category pages

I am trying to change the font size on all pages/posts on the site I'm managing for my employer. I know how to change the font size in "posts" but how do I change font size in "category" pages?

I have tried looking into appearance editor to change the font size.

I looked online at different codes to insert but it is unclear where to place the code or what follow on steps must be done.

This is one of the pages I am trying to change:

Topic admin-css Wordpress

Category Web

1
answered at

You can change admin css with this code to functions.php:

add_action('admin_head', 'my_custom_fonts');

function my_custom_fonts() {
  echo '<style>
    body.taxonomy-category .row-title,body.taxonomy-category input{
      font-family: "Lucida Grande";
      font-size: 16px;
      color: #f04040;
    } 
  </style>';
}

Edit this code as you need.

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