.content-hideable.open {
	margin-top: 1em;
}
.content-hideable .toggle-button {
	display: inline-block;
	clear: both;
	margin-top: 1em;
	cursor: pointer;
}
.content-hideable .toggleable-content,
.content-hideable .toggle-button .close-label,
.content-hideable.open .toggle-button .open-label { 
	display: none; 
}
.content-hideable.open .toggleable-content {
	display: block;
}
.content-hideable.open .toggle-button .close-label {
	display: inline;
}