Precautions
1. The need to use form labels wrap, and set the input tag attributes required to trigger the CSS valid pseudo-class
Preview Address
https://codepen.io/zhaodh/pen/QWLYMxR
Precautions
1. The need to use form labels wrap, and set the input tag attributes required to trigger the CSS valid pseudo-class
Preview Address
https://codepen.io/zhaodh/pen/QWLYMxR