อ๋อ ขอบคุณครับพี่ ตัวนี้ผมลองละ มันไม่สามารถ เอาปลายทางมา Join กันแล้วทำให้เกิดเป็นเส้น ไม่ได้้เลยครับ
ตอนนี้ ตัน ได้แค่นี้ ครับ
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>DevOOPS</title>
<meta name="description" content="description">
<style type="text/css">
/*Now the 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;
}
/*Thats all. I hope you enjoyed it.
Thanks :)*/</style>
</head>
<body>
<!--
We will create a family tree using just CSS(3)
The markup will be simple nested lists
-->
<div class="tree">
<ul>
<li>
<a href="#">Root</a>
<ul>
<li>
<a href="#">A</a>
<ul>
<li>
<a href="#">null</a>
</li>
<li>
<a href="#">C</a>
</li>
</ul>
</li>
<li>
<a href="#">B</a>
<ul>
<li><a href="#">null</a></li>
<li>
<a href="#">D</a>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</body>
</html>
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