section.duyuru{
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	position: fixed;
	width: 100%;
	height: 100%;
	z-index: 9999;
}

section.duyuru div{
	background: white;
	padding: 1em;
	max-width: 80%;
	position: relative;
}

section.duyuru div img{
	width: 100%;
}

section.duyuru div a{
	position: absolute;
	top:0;
	right:0;
	display: block;
	width: 40px;
	height: 40px;
	line-height: 40px;
	text-align: center;
	text-decoration: none;
	background: white;
	border-radius: 20px;
	font-weight: bolder;
}

section:target{
	visibility: hidden;
}