I'm having difficulty understanding why some controls are changing style after a postback. Namely I have a couple RadNumeric controls with spinners. At first load they look and behave as expected. After postback, the style changes somewhat dramatically. Whether or not I use Bootstrap styling the issue persists. I can someone get around it by rolling my own style with !important tags on everything, but seems like a kludge. Any idea of what's going on? Below is code from page that is in question.