*,
*::after,
*::before{
	margin: 0;
	padding: 0;
}/*
#one{
	width: 100%;
	height: 100vh;
	background-color: salmon;
	text-align: center;
	font-size: 50px;
	color: white;
}
#two{
	width: 100%;
	height: 100vh;
	background-color: aquamarine;
	text-align: center;
	font-size: 50px;
	color: white;
}
#three{
	width: 100%;
	height: 100vh;
	background-color: firebrick;
	text-align: center;
	font-size: 50px;
	color: white;
}
#four{
	width: 100%;
	height: 100vh;
	background-color: coral;
	text-align: center;
	font-size: 50px;
	color: white;
}
#five{
	width: 100%;
	height: 100vh;
	background-color: salmon;
	text-align: center;
	font-size: 50px;
	color: white;
}
.up{
    display: none !important;
}
.down{
    display: none !important;
}
@media (max-width: 640px){
    .up{
        display: block !important;
        position: fixed !important;
        margin-left: -22px;
        color: black;
    }
    .down{
        display: block !important;
        position: fixed !important;
        margin-top: 50px;
        margin-left: -22px;
        color: black;
    }
}*/