.help_icon
{
	display: none;

	color: #bad1e0;
	font-family: Arial, Gadget, sans-serif;
	font-weight: bold;
	font-size: 11px;
	text-decoration: none;
	cursor: pointer;
}
.help_icon:hover
{
	text-decoration: underline;
}


.help_icon_list
{
	position: absolute;
	right: 8px;
}
/* show icon when hovering a list item */
#output li:hover .help_icon_list
{
	display: inline;
}


.help_icon_tank
{
	position: absolute;
	top: 24px;
	right: 1px;
}
.input_tank:hover .help_icon_tank
{
	display: inline;
}


.help_icon_distance
{
	position: absolute;
	top: 24px;
	right: 19px;
}
.input_storage:hover .help_icon_distance
{
	display: inline;
}


.help_icon_material
{
	position: absolute;
	top: 24px;
	right: -1px;
}
.input_material:hover .help_icon_material
{
	display: inline;
}


.help_icon_usage
{
	position: absolute;
	top: 1px;
	right: 6px;
}
.input_usage_wrapper:hover .help_icon_usage
{
	display: inline;
}


.help_icon_rain
{
	position: absolute;
	top: 4px;
	right: 229px;
}
.io_rain:hover .help_icon_rain
{
	display: inline;
}


.help_icon_area
{
	position: absolute;
	top: 24px;
	right: -1px;
}
.io_area:hover .help_icon_area
{
	display: inline;
}