Original HTML+BluePrintCSS
 
<div id="header" class="container">
    <div id="title" class="span-10">
        <h1>${H(ApplicationName)}</h1>
    </div>
    <div id="logindisplay" class="prepend-8 span-6 last">
        <logOnUserControl />
    </div>
    <div id="menucontainer" class="span-24 last">
        <ul id="menu">
            <li>${Html.ActionLink("Home", "Index", "Home")}</li>
            <if condition="this.Context.User.Identity.IsAuthenticated">
...
            </if>
            </ul>
    </div>
</div>
 
New HTML+BluePrintCSS+lessCSS
 
<div id="header" class="container">
    <div id="title">
        <h1>${H(ApplicationName)}</h1>
    </div>
    <div id="logindisplay">
        <logOnUserControl />
    </div>
    <div id="menucontainer">
        <ul id="menu">
            <li>${Html.ActionLink("Home", "Index", "Home")}</li>
            <if condition="this.Context.User.Identity.IsAuthenticated">
                ...
            </if>
        </ul>
    </div>
</div>
 
#title {
    .span-10, .column;
}
    
#logindisplay {
    .span-14, .append-bottom, .column, .last;
    text-align: right;
}
    
#menucontainer {
    .span-24, .last;
    text-align: right;
}