嵌入树形图的中间

时间:2016-08-15 07:27:01

标签: html css twitter-bootstrap

大家好日子!

抱歉,我的英语很差

如何将此图表树放在屏幕中间

我正在使用Twitter Bootstrap。

这些是我的html和css代码:



* {margin: 0; padding: 0;}
.tree ul {
	padding-top: 20px; position: relative;
	font-family:'B Yekan', tahoma, Arial;font-size:12px;
	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;
}
.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;
}
.tree li:only-child::after, .tree li:only-child::before {
	display: none;
}
.tree li:only-child{ padding-top: 0;}
.tree li:first-child::before, .tree li:last-child::after{
	border: 0 none;
}
.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;
}
.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;
	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;
}
.tree li a:hover, .tree li a:hover+ul li a {
	background: #c8e4f8; color: #000; border: 1px solid #94a0b4;
}
.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;
}

<div class="tree">
<ul>
<li><a href="#">main</a>
<ul>
<li>
<a href="#">row2</a>
<ul>
<li>
<a href="#">row3</a>
</li>
<li>
<a href="#">row3</a>
</li></ul></li>
<li><a href="#">row2</a>
<ul>
<li><a href="#">row3</a>
</li>
<li><a href="#">row3</a>
<ul>
<li><a href="#">row4</a>
</li>
<li><a href="#">row4</a>
</li>
<li><a href="#">row4</a>
</li></ul></li></ul></li></ul></li></ul></div> 
&#13;
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如何将此图表树放在屏幕中间

1 个答案:

答案 0 :(得分:0)

有不同的方法,但其中一个使用flex
添加到您的班级tree此css:

.tree {
 position: absolute;
 height: 100%;
 width: 100%;
 display: flex;
 align-items: center;
 justify-content: center;
}

希望这有帮助!