【发布时间】:2019-06-17 13:44:41
【问题描述】:
当您调整窗口大小时,树视图会被包裹起来。
在 Bootstrap 中,表格不会在窗口调整大小时缩小,但会显示一个水平滚动条,可用于滚动表格以查看它。
如何才能做到像 Bootstrap 4 响应式表一样?因此,在调整窗口大小时,树视图不会缩小,并且水平滚动条变得可见,可以滚动并查看完整的树视图。
/*Now the CSS*/
* {margin: 0; padding: 0;}
.tree ul {
padding-top: 20px; position: relative;
transition: all 0.5s;
-webkit-tranasition: 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;
}
<div class="tree">
<ul>
<li>
<a href="#">1</a>
<ul>
<li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li>
<li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li>
<li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li>
<li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li><li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li>
<li>
<a href="#">2</a>
<ul>
<li>
<a href="#">2.1</a>
</li>
<li>
<a href="#">2.2</a>
</li>
</ul>
</li>
<li>
<a href="#">3</a>
<ul>
<ul>
<li>
<a href="#">3.1</a>
<ul>
<li>
<a href="#">3.1.1</a>
</li>
<li>
<a href="#">3.1.2</a>
</li>
</ul>
</li>
<li>
<a href="#">3.2</a>
</li>
</ul>
</ul>
</li>
</ul>
</li>
</ul>
</div>
【问题讨论】:
-
您是否尝试过将固定宽度(即:不是 %)应用到树容器?然后,您可以使用
overflow: scroll让容器所在的任何 dom 元素具有响应宽度 -
@Jacquesジャック 仍然尝试工作,然后我也尝试了下面的答案,它有点工作,但是树视图超出了容器 div 并且水平滚动条一直可见。
-
going out of the container div是什么意思?否则它将无法滚动。此外,如果您希望滚动条消失,那是一个单独的问题。 css-tricks.com/forums/topic/…
标签: javascript html css treeview