Topic Tag: Toolset Blocks

function add_class_to_image_block( $block_content, $block ) {
    if ( $block['blockName'] === 'toolset-blocks/image' ) {
        return str_replace( '<img src', '<img class="my-class" src', $block_content );
    }
 
    return $block_content;
}
 
add_filter( 'render_block', 'add_class_to_image_block', 10, 2 );