* {
	font-family: "Roboto", sans-serif;
}

.link_login {
	text-decoration: none;
	color: grey;
}
.link_login:hover {
	text-decoration: underline;
	color: black;
	transition: 0.8s;
}
#login_box_responsive {
	width: 500px;
	background-color: rgba(255, 255, 255, 0.8);
}
.show_550px {
	display: none;
}
@media only screen and (max-width: 550px) {
	#login_box_responsive {
		width: unset;
	}
	#login_logo_responsive {
		width: 200px;
	}
	.font_size_responsive_link {
		font-size: 14px;
	}
	.hidden_550px {
		display: none;
	}
	.show_550px {
	display: block;
	}
}