Fix TinyMCE Text Color

<?php
/**
 * [fix_tinymce_text_color description]
 * @return [type] [description]
 */
add_action('admin_head', 'fix_tinymce_text_color');
function fix_tinymce_text_color(){ ?>
    <style>
        .js .tmce-active .wp-editor-area{color:#000000!important}
        .wpb_vc_column_text p span{
            color:#000000!important
        }
    </style>
    <?php
}