.bt_bb_tabs {
	position: relative;
}
ul.bt_bb_tabs_header {
	overflow: hidden;
	display: inline-block;
	margin: 0;
	padding: 0;
	li {
		display: block;
		float: left;
		cursor: pointer;
		&.on { cursor: auto; }
		margin: 0;
		padding: 0;
		transition: all 300ms ease;
		.bt_bb_style_outline &, .bt_bb_style_filled & {
			border-width: 0 0 0 1px;
			border-style: solid;
			&:first-child { border-width: 0; }
		}
		span {
			line-height: 1.15;
			display: inline-block;
			padding: 1em 2em;
		}
	}
	&:after {
		clear: both;
		content: ' ';
		display: table;
		width: 100%;
	}
	.bt_bb_style_outline &, .bt_bb_style_filled & {
		border-width: 1px;
		border-style: solid;
	}
	.bt_bb_style_simple & {
		li {
			border-bottom: 2px solid transparent;
			&.on {
				border-color: black;
			}
			&:first-of-type span { 
				padding-left: 0;
			}
			&:last-of-type span { 
				padding-right: 0;
			}			
		}
	}
	.bt_bb_shape_rounded & { 
		border-radius: $(softBorderRadius);
	}
	.bt_bb_shape_round & {
		border-radius: 50px;
		li:last-child {
			span { padding-right: 2.5em; }
		}
		li:first-child {
			span { padding-left: 2.5em; }
		}
	}
}

.bt_bb_tab_item {
	visibility: hidden; 
	overflow: hidden;
	height: 0px;
	opacity: 1;
	display: block;
	position: relative;
	top: 0;
	&.has_bt_bb_image {
		position: absolute;
	}
	&.on { 
		visibility: visible; 
		height: auto; 
		position: relative;
	}
}

@media (max-width: 580px) {

	ul.bt_bb_tabs_header {
		display: block;
		li {
			float: none;
			.bt_bb_style_outline &, .bt_bb_style_filled & {
				border-width: 1px 0 0;
			}
		}
		.bt_bb_shape_round & {
			border-radius: 20px;
		}
	}

}