使用方式

<link rel="stylesheet" href="/components/style/col.css" type="text/css" />

<div class="st_row">
    <div class="st_col_24">
        <div class="col_content_dark"></div>
    </div>
</div>
<div class="st_row">
    <div class="st_col_12">
        <div class="col_content_dark"></div>
    </div>
    <div class="st_col_12">
        <div class="col_content_light"></div>
    </div>
</div>
<div class="st_row">
    <div class="st_col_6">
        <div class="st_col_12">
            <div class="col_content_light"></div>
        </div>
        <div class="st_col_12">
            <div class="col_content_dark"></div>
        </div>
    </div>
    <div class="st_col_6">
        <div class="col_content_light"></div>
    </div>
    <div class="st_col_6">
        <div class="col_content_dark"></div>
    </div>
    <div class="st_col_6">
        <div class="col_content_light"></div>
    </div>
</div>