----ContentArea on start page-----

<div id="startPage">
    <div class="jumbotron-image">
        <span class="jumbotron-text">
            @Html.PropertyFor(t => t.JumbotronText, new { CustomTag = "h1" })
        </span>
    </div>
    <div id="start-main-block" class="container">
        @Html.PropertyFor(c => c.ContentAreaMain, new {CssClass ="row"})
    </div>
    <div class="clearfix"></div>
</div>

----BLOCK-----

<div class="teaser-block col-sm-4">
        <div class="teaser-block-tumbnail">
            <img src="@UrlResolver.Current.GetUrl(Model.Thumbnail, null, new VirtualPathArguments()
             { ContextMode = ContextMode.Default })" />
        </div>
        <div class="teaser-block-headline">
            <h3>
                @Html.PropertyFor(m => m.Headline)
            </h3>
        </div>
        <div class="teaser-block-description">
            @Html.PropertyFor(d => d.Description)
        </div>
    </div>


----CSS----
#start-main-block {
    max-width: 950px;
    margin: 0 auto;
    height: 100%;
    max-height: 480px;
    padding-top: 100px;
    background-color: red;
}

    .teaser-block img {
        width: 300px;
        max-height: 200px;
    }

    .teaser-block h3 {
        font-weight: bold;
    }