CSS溢出,我想要它

时间:2016-06-01 03:00:02

标签: html css list tree overflow

我有一个简单的表单样式,开发用于显示树。每张纸都可以有很多或任何一个孩子。

几个节点样式表运行良好,但是大量行为不正确。

节点数较少(正常工作)的树的示例: Example 1

具有许多节点的树的示例(出现故障,您可以看到树被切割和跳下的方式): Example 2

如果我将div宽度强制为特定宽度,我得到我想要的结果,但我需要自动机制,如果可能的话保持纯CSS。示例树运行良好,手动设置宽度: enter image description here

更具体地说,无论屏幕的大小如何,我都会自动寻找树的宽度,并且必须使用滚动来完全看到它。标签的内容长度可能不同,因此其大小可自行调整。

这是我的样式表和示例树:

* {margin: 0; padding: 0;}

/*.tree{width:3000px; margin:40px auto 0 auto}*/

.tree ul {
	padding-top: 20px; position: relative;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

.tree li {
	float: left; text-align: center;
	list-style-type: none;
	position: relative;
	padding: 20px 5px 0 5px;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

/*We will use ::before and ::after to draw the connectors*/

.tree li::before, .tree li::after{
	content: '';
	position: absolute; top: 0; right: 50%;
	border-top: 1px solid #ccc;
	width: 50%; height: 20px;
}
.tree li::after{
	right: auto; left: 50%;
	border-left: 1px solid #ccc;
}

/*We need to remove left-right connectors from elements without 
any siblings*/
.tree li:only-child::after, .tree li:only-child::before {
	display: none;
}

/*Remove space from the top of single children*/
.tree li:only-child{ padding-top: 0;}

/*Remove left connector from first child and 
right connector from last child*/
.tree li:first-child::before, .tree li:last-child::after{
	border: 0 none;
}
/*Adding back the vertical connector to the last nodes*/
.tree li:last-child::before{
	border-right: 1px solid #ccc;
	border-radius: 0 5px 0 0;
	-webkit-border-radius: 0 5px 0 0;
	-moz-border-radius: 0 5px 0 0;
}
.tree li:first-child::after{
	border-radius: 5px 0 0 0;
	-webkit-border-radius: 5px 0 0 0;
	-moz-border-radius: 5px 0 0 0;
}

/*Time to add downward connectors from parents*/
.tree ul ul::before{
	content: '';
	position: absolute; top: 0; left: 50%;
	border-left: 1px solid #ccc;
	width: 0; height: 20px;
}

.tree li a{
	border: 1px solid #ccc;
	padding: 5px 10px;
	text-decoration: none;
	color: #666;
	font-family: arial, verdana, tahoma;
	font-size: 11px;
	display: inline-block;
	
	border-radius: 5px;
	-webkit-border-radius: 5px;
	-moz-border-radius: 5px;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

/*Time for some hover effects*/
/*We will apply the hover effect the the lineage of the element also*/
.tree li a:hover, .tree li a:hover+ul li a {
	background: #c8e4f8; color: #000; border: 1px solid #94a0b4;
}
/*Connector styles on hover*/
.tree li a:hover+ul li::after, 
.tree li a:hover+ul li::before, 
.tree li a:hover+ul::before, 
.tree li a:hover+ul ul::before{
	border-color:  #94a0b4;
}
<html>
  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <meta name = "viewport" content="width = device-width">
    <title>tree</title>
  </head>
  <body>
    <div class="tree">
      <ul>
        <li>
          <a href="#">0</a>
          <ul>
            <li>
              <a href="#">1</a>
              <ul>
                <li>
                  <a href="#">4</a>
                  <ul>
                    <li>
                      <a href="#">9</a>
                      <ul>
                        <li>
                          <a href="#">19</a>
                          <ul>
                            <li>
                              <a href="#">38</a>
                            </li>
                            <li>
                              <a href="#">39</a>
                            </li>
                          </ul>
                        </li>
                        <li>
                          <a href="#">20</a>
                          <ul>
                            <li>
                              <a href="#">40</a>
                            </li>
                            <li>
                              <a href="#">41</a>
                            </li>
                          </ul>
                        </li>
                        <li>
                          <a href="#">21</a>
                          <ul>
                            <li>
                              <a href="#">42</a>
                            </li>
                            <li>
                              <a href="#">43</a>
                            </li>
                          </ul>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">10</a>
                      <ul>
                        <li>
                          <a href="#">22</a>
                        </li>
                        <li>
                          <a href="#">23</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">11</a>
                      <ul>
                        <li>
                          <a href="#">24</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
                <li>
                  <a href="#">5</a>
                  <ul>
                    <li>
                      <a href="#">12</a>
                      <ul>
                        <li>
                          <a href="#">25</a>
                        </li>
                        <li>
                          <a href="#">26</a>
                        </li>
                        <li>
                          <a href="#">27</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">13</a>
                      <ul>
                        <li>
                          <a href="#">28</a>
                        </li>
                        <li>
                          <a href="#">29</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
                <li>
                  <a href="#">6</a>
                  <ul>
                    <li>
                      <a href="#">14</a>
                      <ul>
                        <li>
                          <a href="#">30</a>
                        </li>
                        <li>
                          <a href="#">31</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
            <li>
              <a href="#">2</a>
              <ul>
                <li>
                  <a href="#">7</a>
                  <ul>
                    <li>
                      <a href="#">15</a>
                      <ul>
                        <li>
                          <a href="#">32</a>
                        </li>
                        <li>
                          <a href="#">33</a>
                        </li>
                        <li>
                          <a href="#">34</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">16</a>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
            <li>
              <a href="#">3</a>
              <ul>
                <li>
                  <a href="#">8</a>
                  <ul>
                    <li>
                      <a href="#">17</a>
                      <ul>
                        <li>
                          <a href="#">35</a>
                        </li>
                        <li>
                          <a href="#">36</a>
                        </li>
                        <li>
                          <a href="#">37</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">18</a>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
          </ul>
        </li>
      </ul>
    </div>
  </body>
</html>

我感谢您花时间帮助我。提前谢谢。

2 个答案:

答案 0 :(得分:1)

99%的解决方案:

给DIV一个实际宽度 - 100%的父级。

div.tree {
  margin:40px auto 0 auto;
  width:100%;
  overflow-x:auto; 
}

似乎是包装其内容的UL。 使用nowrap来阻止空格包装。

.tree ul {
  white-space:nowrap;
  padding-top: 20px; position: relative;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
 }

最后将LI转换为块显示,停止向左浮动,并修复丢失的左浮动,将它们与容器顶部对齐。

.tree li {
  display:inline-block;
  vertical-align:top;
  text-align: center;
  list-style-type: none;
  position: relative;
  padding: 20px 5px 0 5px;
  transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
}

缺少1%是水平线之间的几个像素间隙。不知道如何关闭它。保证金和垫子也许?我似乎无法管理它。

在FireFox Win7 64上测试

答案 1 :(得分:0)

更改

/*.tree{width:3000px; margin:40px auto 0 auto}*/

.tree{
    width: 2000px; 
    margin: 40px auto 0 auto;
    overflow-x: scroll;
    overflow-y: hidden;
}

随着树中节点的增长,调整width

&#13;
&#13;
* {margin: 0; padding: 0;}

.tree{width: 2000px; margin:40px auto 0 auto;overflow-x: scroll;
overflow-y: hidden;}

.tree ul {
	padding-top: 20px; position: relative;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

.tree li {
	float: left; text-align: center;
	list-style-type: none;
	position: relative;
	padding: 20px 5px 0 5px;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

/*We will use ::before and ::after to draw the connectors*/

.tree li::before, .tree li::after{
	content: '';
	position: absolute; top: 0; right: 50%;
	border-top: 1px solid #ccc;
	width: 50%; height: 20px;
}
.tree li::after{
	right: auto; left: 50%;
	border-left: 1px solid #ccc;
}

/*We need to remove left-right connectors from elements without 
any siblings*/
.tree li:only-child::after, .tree li:only-child::before {
	display: none;
}

/*Remove space from the top of single children*/
.tree li:only-child{ padding-top: 0;}

/*Remove left connector from first child and 
right connector from last child*/
.tree li:first-child::before, .tree li:last-child::after{
	border: 0 none;
}
/*Adding back the vertical connector to the last nodes*/
.tree li:last-child::before{
	border-right: 1px solid #ccc;
	border-radius: 0 5px 0 0;
	-webkit-border-radius: 0 5px 0 0;
	-moz-border-radius: 0 5px 0 0;
}
.tree li:first-child::after{
	border-radius: 5px 0 0 0;
	-webkit-border-radius: 5px 0 0 0;
	-moz-border-radius: 5px 0 0 0;
}

/*Time to add downward connectors from parents*/
.tree ul ul::before{
	content: '';
	position: absolute; top: 0; left: 50%;
	border-left: 1px solid #ccc;
	width: 0; height: 20px;
}

.tree li a{
	border: 1px solid #ccc;
	padding: 5px 10px;
	text-decoration: none;
	color: #666;
	font-family: arial, verdana, tahoma;
	font-size: 11px;
	display: inline-block;
	
	border-radius: 5px;
	-webkit-border-radius: 5px;
	-moz-border-radius: 5px;
	
	transition: all 0.5s;
	-webkit-transition: all 0.5s;
	-moz-transition: all 0.5s;
}

/*Time for some hover effects*/
/*We will apply the hover effect the the lineage of the element also*/
.tree li a:hover, .tree li a:hover+ul li a {
	background: #c8e4f8; color: #000; border: 1px solid #94a0b4;
}
/*Connector styles on hover*/
.tree li a:hover+ul li::after, 
.tree li a:hover+ul li::before, 
.tree li a:hover+ul::before, 
.tree li a:hover+ul ul::before{
	border-color:  #94a0b4;
}
&#13;
<body>
<div >

    <div class="tree">
      <ul>
        <li>
          <a href="#">0</a>
          <ul>
            <li>
              <a href="#">1</a>
              <ul>
                <li>
                  <a href="#">4</a>
                  <ul>
                    <li>
                      <a href="#">9</a>
                      <ul>
                        <li>
                          <a href="#">19</a>
                          <ul>
                            <li>
                              <a href="#">38</a>
                            </li>
                            <li>
                              <a href="#">39</a>
                            </li>
                          </ul>
                        </li>
                        <li>
                          <a href="#">20</a>
                          <ul>
                            <li>
                              <a href="#">40</a>
                            </li>
                            <li>
                              <a href="#">41</a>
                            </li>
                          </ul>
                        </li>
                        <li>
                          <a href="#">21</a>
                          <ul>
                            <li>
                              <a href="#">42</a>
                            </li>
                            <li>
                              <a href="#">43</a>
                            </li>
                          </ul>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">10</a>
                      <ul>
                        <li>
                          <a href="#">22</a>
                        </li>
                        <li>
                          <a href="#">23</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">11</a>
                      <ul>
                        <li>
                          <a href="#">24</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
                <li>
                  <a href="#">5</a>
                  <ul>
                    <li>
                      <a href="#">12</a>
                      <ul>
                        <li>
                          <a href="#">25</a>
                        </li>
                        <li>
                          <a href="#">26</a>
                        </li>
                        <li>
                          <a href="#">27</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">13</a>
                      <ul>
                        <li>
                          <a href="#">28</a>
                        </li>
                        <li>
                          <a href="#">29</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
                <li>
                  <a href="#">6</a>
                  <ul>
                    <li>
                      <a href="#">14</a>
                      <ul>
                        <li>
                          <a href="#">30</a>
                        </li>
                        <li>
                          <a href="#">31</a>
                        </li>
                      </ul>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
            <li>
              <a href="#">2</a>
              <ul>
                <li>
                  <a href="#">7</a>
                  <ul>
                    <li>
                      <a href="#">15</a>
                      <ul>
                        <li>
                          <a href="#">32</a>
                        </li>
                        <li>
                          <a href="#">33</a>
                        </li>
                        <li>
                          <a href="#">34</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">16</a>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
            <li>
              <a href="#">3</a>
              <ul>
                <li>
                  <a href="#">8</a>
                  <ul>
                    <li>
                      <a href="#">17</a>
                      <ul>
                        <li>
                          <a href="#">35</a>
                        </li>
                        <li>
                          <a href="#">36</a>
                        </li>
                        <li>
                          <a href="#">37</a>
                        </li>
                      </ul>
                    </li>
                    <li>
                      <a href="#">18</a>
                    </li>
                  </ul>
                </li>
              </ul>
            </li>
          </ul>
        </li>
      </ul>
    </div>
    </div>
  </body>
&#13;
&#13;
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