*{
	padding: 0px;
	margin: 0px;
}

header {
	border-bottom: 1px solid lightgrey;
}

#menu li a{

	color: black;
	margin-left: 15px;
	font-weight: 600;
}

.is-invalid {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.15rem rgba(220, 53, 69, 0.25);
}