#imagen-about {
	margin-bottom: 30px;
	}
	
#mapa {
	margin-top: 45px;
	margin-bottom: 20px;
	}
	
#piles3 {
	margin-bottom: 30px
	}
	
#fletes {
	margin-bottom: 20px;
	}

#button1 {
	margin-bottom: 22px;
	}

#titulo-contacto {
	margin-top: 35px;
	}
	
input:focus:valid {
  border: 1px solid green;
}

input:focus:invalid {
  border: 1px solid red;
}