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javascript - 树形 View 被包裹

调整窗口大小时，树视图将被包装。

在Bootstrap中，表格在调整窗口大小时不会缩小，但是会出现水平滚动条，可用于滚动表格以查看表格。

怎样使它像Bootstrap 4响应表一样？这样，在调整窗口大小时，树形视图不会缩小，并且可以看到水平滚动条以滚动和查看完整的树形视图。



/*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>

最佳答案

作为一个简单的示例，我在.tree元素周围添加了一个容器，并为其指定了width: 100%和overflow: scroll。然后我将.tree设置为静态宽度。似乎工作正常。



/*Now the CSS*/
* {margin: 0; padding: 0;}
.tree { width: 1000px; } /* ******* I added this ******* */
.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;
}
.tree-cont { width: 100%; overflow: scroll; }

<div class="tree-cont"> <!-- added this wrapper -->
<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>
</div>

关于javascript - 树形 View 被包裹，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/56625108/

10-13 08:11
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