纯CSS序列号

per-Css-ol


.ol {
	 cursor:pointer;
	list-style-type: none;
	counter-reset: sectioncounter;
}
.ol li:before {
	font-family: Helvetica, Arial, sans-serif;
	content: "第" counter(sectioncounter) "步";
	counter-increment: sectioncounter;
}
.bookmarks {
	display: inline-block;
	background: #21A557;
	width: 80px;
	color: #fff;
	position: relative;
	height: 24px;
	line-height: 24px;
	margin: 5px 0;
	text-indent: 0.5em;
}
.bookmarksArro {
	width: 0;
	position: absolute;
	right: 0;
	top: 0px;
	height: 0;
	width: 0;
	border-width: 12px;
	border-style: dashed solid dashed dashed;
	border-color: transparent #fff transparent transparent;
}
/*书签ol bookmarks 利用border制作的小三
角 可改变三角形位置和颜色组合不同样式（自己修改）*/
.vol {
	display: inline-block;
	background: #21A557;
	width: 24px;
	white-space: normal;
	color: #fff;
	position: relative;
	height: 80px;
	text-align: center;
	margin: 5px 0;
}
.volArro {
	width: 0;
	position: absolute;
	right: 0;
	bottom: 0px;
	height: 0;
	width: 0;
	border-width: 12px;
	border-style: dashed dashed solid dashed;
	border-color: transparent transparent #fff transparent;
}/*vertical ol 简称vol*/
.radius {
	background: #21A557;
	display: inline-block;
	color: #FFF;
	vertical-align: middle;
	width: 60px;
	height: 60px;
	line-height: 60px;
	text-align: center;
	border-radius: 50%;
}/*圆角 ol*/
.cube {
	display: inline-block;
	background: #21A557;
	padding: 6px 12px;
	color: #fff;
	position: relative;
	text-align: center;
	margin: 5px 0;
}/*方形 ol*/
.triangle {
	display: inline-block;
	width: 80px;
	color: #000;
	position: relative;
	height: 24px;
	line-height: 24px;
	margin: 5px;
	text-indent: 0.5em;
}
.triaArro {
	width: 0;
	position: absolute;
	right: -10px;
	top: 0px;
	height: 0;
	width: 0;
	border-width: 12px;
	border-style: dashed dashed dashed solid;
	border-color: transparent transparent transparent #21A557;
}
/*常见的triangle三角形 ol*/
.semiCircle {
	background: #21A557;
	display: inline-block;
	color: #FFF;
	vertical-align: middle;
	width: 60px;
	height: 60px;
	position: relative;
	line-height: 60px;
	overflow: hidden;
	text-align: center;
	border-radius: 50%;
}
.semiArro {
	width: 0;
	position: absolute;
	left: 18px;
	bottom: -10px;
	height: 0;
	width: 0;
	border-width: 12px;
	border-style: solid dashed dashed dashed;
	border-color: #fff transparent transparent transparent;
	z-index: 100;
}
/*圆内三角形可改变三角形位置来组合不同图像*/
.border {
	background: #fff;
	display: inline-block;
	color: #21A557;
	vertical-align: middle;
	width: 60px;
	border: 2px solid #21A557;
	height: 60px;
	line-height: 60px;
	text-align: center;
	border-radius: 50%;
}