不在列中滚动

Question

我在这里有bootply，在右侧栏中，我在div中创建了一些面板。我试图获取它以便面板在列内滚动，但不是整个页面（我不希望页眉或页脚在面板的上方和下方滚动），但出于某种原因，＆ ＃39;溢出-y：滚动＆＃39;是禁用还是不工作！

这是我的代码

＆＃13;

＆＃13;

html,body,.container {
    height:calc(100% - 17px);
}
.container {
    display:table;
    width: 100%;
    margin-top: -50px;
    padding: 0px 0 0 0; /*set left/right padding according to needs*/
    box-sizing: border-box;
}

.row {
    height: 100%;
    display: table-row;
}

.col-md-3 {   
    background: pink;
}
.col-md-9 {
    background: yellow;  	
}

.row .no-float {
  display: table-cell;
  float: none;
}
header, footer {
            text-align: center;
            padding-top: 10px;
            padding-bottom: 10px;
            border-bottom: 1px solid lightgrey;
            background: white;
        }

        footer {
            border-top: 1px solid lightgrey;
            position: absolute;
            bottom: 0;
            width: 100%;
        }

＆＃13;

<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>
<div class="container">
    <div class="row">
        <div class="col-md-6 no-float">Navigation</div>
        <div class="col-sm-6 no-float" style="padding-left: 0px; padding-right: 0px;">
            <header>
                <div class="btn-group btn-group-lg" role="group" aria-label="...">
                    <button type="button" class="btn btn-default">Events</button>
                    <button type="button" class="btn btn-default">Hosts</button>
                    <button type="button" class="btn btn-default">Teachers</button>
                </div>
            </header>
            
            <div id="eventsContainer" style="overflow-y: scroll;">
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
            </div>
            <footer>
                <div class="btn-group" role="group" aria-label="...">
                    <button type="button" class="btn btn-default">Events</button>
                    <button type="button" class="btn btn-default">Hosts</button>
                    <button type="button" class="btn btn-default">Teachers</button>
                </div>
            </footer> 
        </div>
    </div>
</div>

＆＃13;

＆＃13;

＆＃13;

Answer 1

您需要将height分配给#eventsContainer以使其滚动。所以使用CSS的calc()函数。像：

#eventsContainer {
  height: calc(100% - 122px); /* Total Height - Height of (header + footer) */
}

查看下面的工作代码段：

#eventsContainer {
  height: calc(100% - 122px);
}

html,body,.container {
    height:calc(100% - 17px);
}
.container {
    display:table;
    width: 100%;
    margin-top: -50px;
    padding: 0px 0 0 0; /*set left/right padding according to needs*/
    box-sizing: border-box;
}

.row {
    height: 100%;
    display: table-row;
}

.col-md-3 {   
    background: pink;
}
.col-md-9 {
    background: yellow;  	
}

.row .no-float {
  display: table-cell;
  float: none;
}
header, footer {
    text-align: center;
    padding-top: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid lightgrey;
    background: white;
}

footer {
    border-top: 1px solid lightgrey;
    position: absolute;
    bottom: 0;
    width: 100%;
}

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>

<nav class="navbar navbar-default">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="#">Brand</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">One more separated link</a></li>
          </ul>
        </li>
      </ul>
      <form class="navbar-form navbar-left">
        <div class="form-group">
          <input type="text" class="form-control" placeholder="Search">
        </div>
        <button type="submit" class="btn btn-default">Submit</button>
      </form>
      <ul class="nav navbar-nav navbar-right">
        <li><a href="#">Link</a></li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a>
          <ul class="dropdown-menu">
            <li><a href="#">Action</a></li>
            <li><a href="#">Another action</a></li>
            <li><a href="#">Something else here</a></li>
            <li role="separator" class="divider"></li>
            <li><a href="#">Separated link</a></li>
          </ul>
        </li>
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>
<div class="container">
    <div class="row">
        <div class="col-md-6 no-float">Navigation</div>
        <div class="col-sm-6 no-float" style="padding-left: 0px; padding-right: 0px;">
            <header>
                <div class="btn-group btn-group-lg" role="group" aria-label="...">
                    <button type="button" class="btn btn-default">Events</button>
                    <button type="button" class="btn btn-default">Hosts</button>
                    <button type="button" class="btn btn-default">Teachers</button>
                </div>
            </header>
            
            <div id="eventsContainer" style="overflow-y: scroll;">
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
                <div class="panel panel-default">
                    <div class="panel-body">
                        Basic panel example
                    </div>
                </div>
            </div>
            <footer>
                <div class="btn-group" role="group" aria-label="...">
                    <button type="button" class="btn btn-default">Events</button>
                    <button type="button" class="btn btn-default">Hosts</button>
                    <button type="button" class="btn btn-default">Teachers</button>
                </div>
            </footer> 
        </div>
    </div>
</div>

希望这有帮助！

Answer 2

问题是溢出仅在内容试图超过容器时才起作用。在您的示例中，#eventsContainer没有设置高度，并且由于HTML的性质（垂直扩展以适应内容），内容正在推出。

为了实现滚动，您的#eventsContainer必须有一个设定的高度。

然而，由于我假设您希望这个高度是动态的，而不是像'300px'那样静态的东西，我掀起了一个jsfiddle以展示绝对定位，以创建一个全屏版本，而无需向外推。