JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.min.css">
<div class="mainContent">
    <div class="workplace_outter">
        <div class="workplace_inner">
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
            <div class="panel panel-default">
                <div class="panel-heading">
                    Item
                </div>
                <div class="panel-body">
                    Item Body....
                </div>
            </div>
           ...

CSS

.mainContent{
 padding:20px;
}
.workplace_outter{
    width:100%;
    oveflow-x:scroll;
}
.workplace_inner{
    width:2000px;
}
.workplace_outter .panel{
    width:300px;
    margin-right:5px;
    display:inline-block;
}