#sommario-select {
	text-align: center;
	transition: background-color 0.5s ease 0s;
}

#sommario-select.sommario-fixed {
	display:block;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	padding: 1rem;
	background-color: rgba(82, 113, 255, .75);
	text-align: center;
	z-index: 99999;
}

#sommario-select select{
	display:none;
	width: 100%;
	padding:.5rem;
}
#sommario-select.sommario-fixed select{
	display:block;
}