@media screen and (max-width: 1270px) {
	#header {
		height:30px;
	}		    
}

@media screen and (max-width: 1000px) {
	#login_screen {
		margin-left:10%;
		width:80%;
	}
}

@media screen and (max-width: 860px) {
	#log_button {
		display:none;
	}
	#logout_icon {
		display:block;
	}
}

@media screen and (max-width: 450px) {
	#login_screen {
		margin-left:10px;		
		margin-right:10px;
		width:auto;
	}
	
	#btn_come, #btn_home, #btn_leave, #btn_travel {
		width: 90% !important;
		height:50px;		
	}
	
	#btn_state {
		width: 90% !important;				
	}
	
	#text_comment {
		width:86%;		
	}
}