label:has(:focus:invalid){color:tomato}label:has(:focus:valid){color:#32cd32}label:has(:focus-visible:invalid) input{outline-color:pink}label:has(:focus-visible:valid) input{outline-color:#90ee90}input{transition:all .3s}.column-empty input{outline-color:tomato}.column-empty:after{content:"Can't be empty";position:absolute;right:10px;top:35%;font-size:14px;color:red}