Content box styles

gardener.html

<style type="text/css">
    p.content-box {
        margin: 0 0 25px;
        padding: 20px;
    }
    
    .content-box-blue {
        background-color: #d8ecf7;
        border: 1px solid #afcde3;
    }
    
    /* ... etc. */
</style>

<p class="content-box content-box-blue">foo bar baz</p>