Template:Hidden begin/styles.css

.hidden-begin {
	margin: 0;
	padding: 4px;
	font-size: 95%;
}
.hidden-begin-title {
	line-height: 1.6em;
	font-weight: bold;
}
.hidden-begin-toggleleft .mw-collapsible-toggle,
.hidden-begin-toggleleft:not(.mw-made-collapsible)::before {
	float: left;
}