Bootstrap の Grid system サンプル６

Grid を入れ子にする

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<div class="container">
    <div class="row">
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
        <div class="col-xs-1">1</div>
    </div>
    <div class="row">
        <div class="col-xs-8">8
            <div class="row">
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
            </div>
            <div class="row">
                <div class="col-xs-5">5</div>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col-xs-4">3
            <div class="row">
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div class="col-xs-1">1</div>
                <div...

CSS

div {text-align: center;}
.container>.row>div {border: 1px solid red; color: red;}
.container .row .row>div {border: 1px solid blue; color: blue;}