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How to add a wrapper class

  • Hi this should be an obvious one. I just can’t seem to find it. I’m trying to arrange sub fields in a Flexible Content field and I’m using the block layout. I can set the wrapper widths to 50% which works well but I am getting some sub fields floating when I don’t need them to. I thought I could fix this by adding a class in the wrapper attributes class option but I don’t know how to make a class available. I assume I need to make a stylesheet with whatever class I need but I don’t know how to make the stylesheet available. The only info I can find is to use add_editor_style(); in my functions.php but I think this only adds styles to the wordpress default wysiwyg editor.

    Much apreciated if someone could tell me how to do this please.

  • Found it. In functions.php:

    add_action('admin_head', 'my_custom_css');
    function my_custom_css() {
        echo '<style>
        .clear-left {
          clear:left !important;
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