当某些动态元素需要绝对定位时,避免重叠内容

时间:2014-01-22 19:09:27

标签: html css responsive-design

在codepen上有一个整洁的响应式组织结构图布局:http://codepen.io/siiron/pen/aLkdE它使用绝对定位来模仿旧式组织结构图的效果。但是,它非常依赖于绝对定位元素,以使框出现在正确的位置。

当您尝试将其放入自己的文档流程中时,会出现问题,并与其下方的内容重叠。显然,由于它的设计是响应性的,你无法预测内容的高度,以及我想实现它的方式,盒子的内容无论如何都是动态的 - 所以添加一个固定高度的div包装似乎不是一种选择。

我添加了一个小提示来演示问题:http://jsfiddle.net/yvjG4/

<style>
*{
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
}

.cf:before,
.cf:after {
    content: " "; /* 1 */
    display: table; /* 2 */
}

.cf:after {
    clear: both;
}

/**
 * For IE 6/7 only
 * Include this rule to trigger hasLayout and contain floats.
 */
.cf {
    *zoom: 1;
}

/* Generic styling */

body{
    background: #F5EEC9;    
}

.content{
    width: 100%;
    max-width: 1142px;
    margin: 0 auto;
    padding: 0 20px;
}

a:focus{
    outline: 2px dashed #f7f7f7;
}

@media all and (max-width: 767px){
    .content{
        padding: 0 20px;
    }   
}

ul{
    padding: 0;
    margin: 0;
    list-style: none;       
}

ul a{
    display: block;
    background: #ccc;
    border: 4px solid #fff;
    text-align: center;
    overflow: hidden;
    font-size: .7em;
    text-decoration: none;
    font-weight: bold;
    color: #333;
    height: 70px;
    margin-bottom: -26px;
    box-shadow: 4px 4px 9px -4px rgba(0,0,0,0.4);
    -webkit-transition: all linear .1s;
    -moz-transition: all linear .1s;
    transition: all linear .1s;
}


@media all and (max-width: 767px){
    ul a{
        font-size: 1em;
    }
}


ul a span{
    top: 50%;
    margin-top: -0.7em;
    display: block;
}

/*

 */

.administration > li > a{
    margin-bottom: 25px;
}

.director > li > a{
    width: 50%;
    margin: 0 auto 0px auto;
}

.subdirector:after{
    content: "";
    display: block;
    width: 0;
    height: 130px;
    background: red;
    border-left: 4px solid #fff;
    left: 45.45%;
    position: relative;
}

.subdirector,
.departments{
    position: absolute;
    width: 100%;
}

.subdirector > li:first-child,
.departments > li:first-child{  
    width: 18.59894921190893%;
    height: 64px;
    margin: 0 auto 92px auto;       
    padding-top: 25px;
    border-bottom: 4px solid white;
    z-index: 1; 
}

.subdirector > li:first-child{
    float: right;
    right: 27.2%;
    border-left: 4px solid white;
}

.departments > li:first-child{  
    float: left;
    left: 27.2%;
    border-right: 4px solid white;  
}

.subdirector > li:first-child a,
.departments > li:first-child a{
    width: 100%;
}

.subdirector > li:first-child a{    
    left: 25px;
}

@media all and (max-width: 767px){
    .subdirector > li:first-child,
    .departments > li:first-child{
        width: 40%; 
    }

    .subdirector > li:first-child{
        right: 10%;
        margin-right: 2px;
    }

    .subdirector:after{
        left: 49.8%;
    }

    .departments > li:first-child{
        left: 10%;
        margin-left: 2px;
    }
}


.departments > li:first-child a{
    right: 25px;
}

.department:first-child,
.departments li:nth-child(2){
    margin-left: 0;
    clear: left;    
}

.departments:after{
    content: "";
    display: block;
    position: absolute;
    width: 81.1%;
    height: 22px;   
    border-top: 4px solid #fff;
    border-right: 4px solid #fff;
    border-left: 4px solid #fff;
    margin: 0 auto;
    top: 130px;
    left: 9.1%
}

@media all and (max-width: 767px){
    .departments:after{
        border-right: none;
        left: 0;
        width: 49.8%;
    }
}

.department:before{
    content: "";
    display: block;
    position: absolute;
    width: 0;
    height: 22px;
    border-left: 4px solid white;
    z-index: 1;
    top: -22px;
    left: 50%;
    margin-left: -4px;
}

.department:first-child:before,
.department:last-child:before{
    border:none;
}

.department{
    border-left: 4px solid #fff;
    width: 18.59894921190893%;
    float: left;
    margin-left: 1.751313485113835%;
    margin-bottom: 60px;
}

.lt-ie8 .department{
    width: 18.25%;
}

@media all and (max-width: 767px){
    .department{
        float: none;
        width: 100%;
        margin-left: 0;
    }

    .department:before{
        content: "";
        display: block;
        position: absolute;
        width: 0;
        height: 60px;
        border-left: 4px solid white;
        z-index: 1;
        top: -60px;
        left: 0%;
        margin-left: -4px;
    }

    .department:nth-child(2):before{
        display: none;
    }
}

.department > a{
    margin: 0 0 -26px -4px;
    z-index: 1;
}

.department > a:hover{  
    height: 80px;
}

.department > ul{
    margin-top: 0px;
    margin-bottom: 0px;
}

.department li{ 
    padding-left: 25px;
    border-bottom: 4px solid #fff;
    height: 80px;   
}

.department li a{
    background: #fff;
    top: 48px;  
    position: absolute;
    z-index: 1;
    width: 90%;
    height: 60px;
    vertical-align: middle;
    right: -1px;
    background-image: -moz-linear-gradient(-45deg,  rgba(0,0,0,0.25) 0%, rgba(0,0,0,0) 100%) !important;
    background-image: -webkit-gradient(linear, left top, right bottom, color-stop(0%,rgba(0,0,0,0.25)), color-stop(100%,rgba(0,0,0,0)))!important;
    background-image: -webkit-linear-gradient(-45deg,  rgba(0,0,0,0.25) 0%,rgba(0,0,0,0) 100%)!important;
    background-image: -o-linear-gradient(-45deg,  rgba(0,0,0,0.25) 0%,rgba(0,0,0,0) 100%)!important;
    background-image: -ms-linear-gradient(-45deg,  rgba(0,0,0,0.25) 0%,rgba(0,0,0,0) 100%)!important;
    background-image: linear-gradient(135deg,  rgba(0,0,0,0.25) 0%,rgba(0,0,0,0) 100%)!important;
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#40000000', endColorstr='#00000000',GradientType=1 );
}

.department li a:hover{
    box-shadow: 8px 8px 9px -4px rgba(0,0,0,0.1);
    height: 80px;
    width: 95%;
    top: 39px;
    background-image: none!important;
}

/* Department/ section colors */
.department.dep-a a{ background: #FFD600; }
.department.dep-b a{ background: #AAD4E7; }
.department.dep-c a{ background: #FDB0FD; }
.department.dep-d a{ background: #A3A2A2; }
.department.dep-e a{ background: #f0f0f0; }
</style>

<h3>Some Content Above</h3>
<div class="content">
  <h1>Responsive Organization Chart</h1>
  <figure class="org-chart cf">
    <ul class="administration">
      <li>                  
        <ul class="director">
          <li>
            <a href="#"><span>Director</span></a>
            <ul class="subdirector">
              <li><a href="#"><span>Assistante Director</span></a></li>
            </ul>
            <ul class="departments cf">                             
              <li><a href="#"><span>Administration</span></a></li>

              <li class="department dep-a">
                <a href="#"><span>Department A</span></a>
                <ul class="sections">
                  <li class="section"><a href="#"><span>Section A1</span></a></li>
                  <li class="section"><a href="#"><span>Section A2</span></a></li>
                  <li class="section"><a href="#"><span>Section A3</span></a></li>
                  <li class="section"><a href="#"><span>Section A4</span></a></li>
                  <li class="section"><a href="#"><span>Section A5</span></a></li>
                </ul>
              </li>
              <li class="department dep-b">
                <a href="#"><span>Department B</span></a>
                <ul class="sections">
                  <li class="section"><a href="#"><span>Section B1</span></a></li>
                  <li class="section"><a href="#"><span>Section B2</span></a></li>
                  <li class="section"><a href="#"><span>Section B3</span></a></li>
                  <li class="section"><a href="#"><span>Section B4</span></a></li>
                </ul>
              </li>
              <li class="department dep-c">
                <a href="#"><span>Department C</span></a>
                <ul class="sections">
                  <li class="section"><a href="#"><span>Section C1</span></a></li>
                  <li class="section"><a href="#"><span>Section C2</span></a></li>
                  <li class="section"><a href="#"><span>Section C3</span></a></li>
                  <li class="section"><a href="#"><span>Section C4</span></a></li>
                </ul>
              </li>
              <li class="department dep-d">
                <a href="#"><span>Department D</span></a>
                <ul class="sections">
                  <li class="section"><a href="#"><span>Section D1</span></a></li>
                  <li class="section"><a href="#"><span>Section D2</span></a></li>
                  <li class="section"><a href="#"><span>Section D3</span></a></li>
                  <li class="section"><a href="#"><span>Section D4</span></a></li>
                  <li class="section"><a href="#"><span>Section D5</span></a></li>
                  <li class="section"><a href="#"><span>Section D6</span></a></li>
                </ul>
              </li>
              <li class="department dep-e">
                <a href="#"><span>Department E</span></a>
                <ul class="sections">
                  <li class="section"><a href="#"><span>Section E1</span></a></li>
                  <li class="section"><a href="#"><span>Section E2</span></a></li>
                  <li class="section"><a href="#"><span>Section E3</span></a></li>
                </ul>
              </li>
            </ul>
          </li>
        </ul>   
      </li>
    </ul>           
  </figure>
</div>
<h3>Some Content Below</h3>

有关组织结构图布局如何与下面不重叠的内容纠缠在一起的任何想法?

2 个答案:

答案 0 :(得分:1)

我希望这就是你要找的东西,  我所做的改变:

.departments{
    height:0;
    width: 100%;
}


@media all and (max-width: 767px){
    .department{
        float: left;
        width: 100%;
        margin-left: 0;
    }
}

http://jsfiddle.net/yvjG4/30/

答案 1 :(得分:0)

一个解决方案,也许不是最优雅的解决方案,是将每个部分包装到它自己的div中,然后给div包裹组织结构图足够的高度,将底部内容放在组织结构图下面。

HTML:

<div class="top-content"></div>
<div class="middle-content">
  // org chart here
</div>
<div class="footer-content"></div>

的CSS:

.middle-content{
  position:relative;
  height:2500px;
}