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CSS3面包屑导航和多步骤指示_html/css_WEB-ITnose

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Release: 2016-06-21 08:58:53
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面包屑是用来做当前页面所在的站点位置的导航作用,它一层层的表示站点分类或目录层级关系,而多步骤指示经常用在一些分步流程向导的应用,如分步注册向导,货物订购流程。今天我们来用CSS制作面包屑和多步骤指示的应用。

查看演示 下载源码

HTML

HTML结构非常简单,一个有序列表ol,外面又

面包屑导航条的结构,我们给ol加上class样式为:.cd-breadcrumb,那么当前位置的层级li加上class样式为:.current。

<nav>	<ol class="cd-breadcrumb">		<li><a href="#0">首页</a></li>		<li><a href="#0">开发</a></li>		<li><a href="#0">Web</a></li>		<li class="current"><em>技术热点</em></li>	</ol></nav>
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多步骤指示的结构,我们给ol加上class样式为:.cd-multi-steps,已完成的步骤的li加上class样式:.visited,当前步骤li加上class样式:.current。

<nav>	<ol class="cd-multi-steps text-center">		<li class="visited"><a href="#0">购物车</a></li>		<li class="visited" ><a href="#0">结算付款</a></li>		<li class="current"><em>送货</em></li>		<li><em>验货收货</em></li>	</ol></nav>
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CSS

首先,我们使用::after伪元素来创建分隔符元素,就是层级之间的分割。

.cd-breadcrumb li::after, .cd-multi-steps li::after {  display: inline-block;  content: '\00bb';  margin: 0 .6em;  color: #959fa5;}
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如果我们需要使用自定义的分隔符,可以自定义样式 .custom-separator,并将样式添加到

    元素上,例如:

    <nav>	<ol class="cd-breadcrumb custom-separator">		<li><a href="#0">首页</a></li>		<li><a href="#0">开发</a></li>		<li><a href="#0">Web</a></li>		<li class="current"><em>技术热点</em></li>	</ol></nav>
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    完了分隔符的样式.custom-separator这样写:

    .cd-breadcrumb.custom-separator li::after, .cd-multi-steps.custom-separator li::after {  /* replace the default separator with a custom icon */  content: '';  height: 16px;  width: 16px;  background: url(../img/cd-custom-separator.svg) no-repeat center center;  vertical-align: middle;}
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    如果你像给面包屑导航和分步骤指示加上小图标,可以这些写样式,本例中我们使用svg文件来作图标处理。

    .cd-breadcrumb.custom-icons li > *::before, .cd-multi-steps.custom-icons li > *::before {  /* add a custom icon before each item */  content: '';  display: inline-block;  height: 20px;  width: 20px;  margin-right: .4em;  margin-top: -2px;  background: url(../img/cd-custom-icons-01.svg) no-repeat 0 0;  vertical-align: middle;}.cd-breadcrumb.custom-icons li:not(.current):nth-of-type(2) > *::before, .cd-multi-steps.custom-icons li:not(.current):nth-of-type(2) > *::before {  /* change custom icon using image sprites */  background-position: -20px 0;}.cd-breadcrumb.custom-icons li:not(.current):nth-of-type(3) > *::before, .cd-multi-steps.custom-icons li:not(.current):nth-of-type(3) > *::before {  background-position: -40px 0;}.cd-breadcrumb.custom-icons li:not(.current):nth-of-type(4) > *::before, .cd-multi-steps.custom-icons li:not(.current):nth-of-type(4) > *::before {  background-position: -60px 0;}.cd-breadcrumb.custom-icons li.current:first-of-type > *::before, .cd-multi-steps.custom-icons li.current:first-of-type > *::before {  /* change custom icon for the current item */  background-position: 0 -20px;}.cd-breadcrumb.custom-icons li.current:nth-of-type(2) > *::before, .cd-multi-steps.custom-icons li.current:nth-of-type(2) > *::before {  background-position: -20px -20px;}.cd-breadcrumb.custom-icons li.current:nth-of-type(3) > *::before, .cd-multi-steps.custom-icons li.current:nth-of-type(3) > *::before {  background-position: -40px -20px;}.cd-breadcrumb.custom-icons li.current:nth-of-type(4) > *::before, .cd-multi-steps.custom-icons li.current:nth-of-type(4) > *::before {  background-position: -60px -20px;}
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    当然,我们也可以将三角形箭头设置成分隔符,代码如下:

    .cd-breadcrumb.triangle li::after,   .cd-breadcrumb.triangle li > *::after {    /*     	li > *::after is the colored triangle after each item    	li::after is the white separator between two items    */    content: '';    position: absolute;    top: 0;    left: 100%;    content: '';    height: 0;    width: 0;    /* 48px is the height of the <a> element */    border: 24px solid transparent;    border-right-width: 0;    border-left-width: 20px;  }  .cd-breadcrumb.triangle li::after {    /* this is the white separator between two items */    z-index: 1;    -webkit-transform: translateX(4px);    -moz-transform: translateX(4px);    -ms-transform: translateX(4px);    -o-transform: translateX(4px);    transform: translateX(4px);    border-left-color: #ffffff;    /* reset style */    margin: 0;  }  .cd-breadcrumb.triangle li > *::after {    /* this is the colored triangle after each element */    z-index: 2;    border-left-color: inherit;  }  .cd-breadcrumb.triangle li:last-of-type::after,   .cd-breadcrumb.triangle li:last-of-type > *::after {    /* hide the triangle after the last step */    display: none;  }
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    对于分步骤指示我们还可以添加class如:.text-center, .text-top和 .text-bottom来让文字的位置对齐,还可以添加class如count用来标记步骤数,如以下代码:

    <nav>	<ol class="cd-multi-steps text-bottom count">		<li class="visited"><a href="#0">购物车</a></li>		<li class="visited" ><a href="#0">结算付款</a></li>		<li class="current"><em>送货</em></li>		<li><em>验货收货</em></li>	</ol></nav>
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    各种添加的样式具体可以看演示demo,我们的demo中给出9种不同的示例,查看页面源代码你就会有收获。

source:php.cn
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