Question

＆＃13;

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      <img src="logo-cisco.png">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; QA Test Automation</div>

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        <!---------------------------------------------------- CFA DashBoards ----------------------------------------------------------------------------------->
        <div id="CFADashBoards" class="tab">
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          <!--
We will create a family tree using just CSS(3)
The markup will be simple nested lists
-->
          <div class="tree" id="tree">
            <ul>
              <li>
                <a href="#">Parent</a>
                <ul>
                  <li>
                    <a href="#">Child</a>
                    <ul>
                      <li>
                        <a href="#">Grand Child</a>
                      </li>
                    </ul>
                  </li>
                  <li>
                    <a href="#">Child</a>
                    <ul>
                      <li><a href="#">Grand Child</a>
                      </li>
                      <li>
                        <a href="#">Grand Child</a>
                        <ul>
                          <li>
                            <a href="#">Great Grand Child</a>
                          </li>
                          <li>
                            <a href="#">Great Grand Child</a>
                          </li>
                          <li>
                            <a href="#">Great Grand Child</a>
                          </li>
                        </ul>
                      </li>
                      <li><a href="#">Grand Child</a>
                      </li>
                    </ul>
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＆＃13;

我想在我的JSP页面中显示我的href链接的父子树流，在谷歌搜索一段时间后我知道它可以通过CSS完成。我指的是这个网站：http://thecodeplayer.com/walkthrough/css3-family-tree

然而，即使在复制相同的代码后，它似乎也无法在我的页面中使用。

HTML：

<div class="tree" id="tree">
<ul>
    <li>
        <a href="#">Parent</a>
        <ul>
            <li>
                <a href="#">Child</a>
                <ul>
                    <li>
                        <a href="#">Grand Child</a>
                    </li>
                </ul>
            </li>
            <li>
                <a href="#">Child</a>
                <ul>
                    <li><a href="#">Grand Child</a></li>
                    <li>
                        <a href="#">Grand Child</a>
                        <ul>
                            <li>
                                <a href="#">Great Grand Child</a>
                            </li>
                            <li>
                                <a href="#">Great Grand Child</a>
                            </li>
                            <li>
                                <a href="#">Great Grand Child</a>
                            </li>
                        </ul>
                    </li>
                    <li><a href="#">Grand Child</a></li>
                </ul>
            </li>
        </ul>
    </li>
</ul>

CSS：

* {margin: 0; padding: 0;}
.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;
}

Answer 1

您可以使用<hr>在html5页面中绘制线条例如，尝试使用此代码并检查它

<h1>HTML</h1>
<p>HTML is a language for describing web pages.....</p>

<hr>

<h1>CSS</h1>
<p>CSS defines how to display HTML elements.....</p>

有任何疑问回复

无法在html元素之间绘制线条

1 个答案: