select[aria-label="kostenstelle"]:valid,
input[type="text"]:valid,
input[type="email"]:valid,
input[type="number"]:valid
{ 
	border: 2px solid green;
}
select[aria-label="kostenstelle"]:invalid:required,
input[type="text"]:invalid:required,
input[type="email"]:invalid:required,
input[type="number"]:invalid:required
{ 
	border: 2px solid red;
}

input[type="text"]:focus:invalid:required { 
	border: 3px solid red;
}

.bg{
	padding: 1rem;
	background:silver;
}

.bg_red{
	background:#b51440;
	padding: 1rem;
	color: #FFFFFF;
}

.bg_blau{
	padding: 1rem;
	background:#58595b;
	color: #FFFFFF;
}

.uk-accordion>:nth-child(n+2) {
	margin-top: 0;
}

.uk-accordion-title {
	color: #FFF;
}

.uk-accordion-title:focus,
.uk-accordion-title:hover {
	color: #FFF;
	text-decoration: underline;
}