cadastro.css

/* body */

form {
    width: 60vw;
    margin: 0 auto;
    background-color: lightpink;
    padding: 20px;
}

form h2 {
    text-align: center;
    color: white;
    font-family: 'montserrat';
    padding: 10px;
}

input, select{
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    border: none;
    margin-bottom: 10px;
}

input[type="submit"]{
	color: white;
	background-color: rgb(254,65,163);
	font-weight: bold;
	cursor: pointer;
}

.controlador {
    width: 100%;
  }
  
  .controlador small {
  
    color: red;
    display: none;
    font-size: 12px;
  }
  
  .controlador.erro input{
  
    border-color: red;
    
  }
  
  .controlador.erro small {
  
    display: block;
  
  }