JezK

Edit File: button-group.css

.rwmb-button-input-list {
	margin: 0;
}
.rwmb-button-input-list li {
	margin-bottom: 0;
	list-style: none;
}
.rwmb-button-input-list .rwmb-button_group {
	display: none;
}
.rwmb-button-input-list li label {
	display: inline-block;
	border: #ccc solid 1px;
	position: relative;
	z-index: 1;
	padding: 5px 10px;
	background: #fff;
}
.rwmb-button-input-list li label.selected {
	border-color: #0073aa;
	background: #0073aa;
	color: #fff;
	z-index: 2;
}
/* Layout not inline
-------------------------------------------------*/
.rwmb-button-input-list:not(.rwmb-inline) li label {
	 border-top-width: 0;
}
.rwmb-button-input-list:not(.rwmb-inline) li:first-child label {
	border-top-width: 1px;
}
.rwmb-button-input-list:not(.rwmb-inline) li label.selected {
	border-bottom: 1px solid #fff;
}
.rwmb-button-input-list:not(.rwmb-inline) li:last-child label.selected {
	border-bottom-color: #0073aa;
}
.rwmb-button-input-list:not(.rwmb-inline) > li:first-child:not(:last-child) label {
	border-top-left-radius: 3px;
	border-top-right-radius: 3px;
}
.rwmb-button-input-list:not(.rwmb-inline)  > li:last-child:not(:first-child) label {
	border-bottom-right-radius: 3px;
	border-bottom-left-radius: 3px;
}
/*  Layout inline
---------------------------------------------*/
.rwmb-button-input-list.rwmb-inline li {
	display: inline-block;
}
.rwmb-button-input-list.rwmb-inline li label {
	border-left-width: 0;
}
.rwmb-button-input-list.rwmb-inline li:first-child label {
	border-left-width: 1px;
}
.rwmb-button-input-list.rwmb-inline li label.selected {
	border-right-color: rgb(255, 255, 255);
}
.rwmb-button-input-list.rwmb-inline li:last-child label.selected {
	border-right-color: #0073aa;
}
.rwmb-button-input-list.rwmb-inline > li:first-child:not(:last-child) label {
	border-top-left-radius: 3px;
	border-bottom-left-radius: 3px;
}
.rwmb-button-input-list.rwmb-inline > li:last-child:not(:first-child) label {
	border-top-right-radius: 3px;
	border-bottom-right-radius: 3px;
}