#motopress-dialog-style-tab div[data-motopress-parameter="custom_class"] {
    display: none;
}

div[data-motopress-loop-file="loop/loop-page.php"]:after,
div[data-motopress-loop-file="loop/loop-page.php"]:before {
    display: none;
}

#motopress-content-editor-leftbar .popover.clickover, #motopress-content-editor-leftbar:hover .popover.clickover {
    max-width: none;
}