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;
如何将此图表树放在屏幕中间?
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!