.menu {
	position: fixed;
	left: 0;
	top: 10%;
	margin-top: -2.5em;
	width: 19%;
	display: block;
}
.content{
	float: right; 
	width: 80%; 
	overflow: hidden;
	justify-content: center;
	
}
.form-periodo{
	position: fixed;
	top: 3%;
}
.footer{
	left: 0;
	bottom: 10%;
	position: fixed; 
	width: 15%; 
	justify-content: center;
	align-items: center;
}