Umbraco 6

I noticed something that seems strange.... Within my partial view, I have a nested if statement:

@{
...

    if(typedMNTPCollection.Any())
    {
         <div class="homeHighlightsCarouselOutter">
         if(size == "Small")
         {

            <div class="head headerColorHome with-rss">
                <h3>@featureTitle</h3>
              </div>

         }
        else {<p>its not</p>}
         </div>
    }
}

When rendered in a web page, the following text kept getting printed out to the page:

   if(size == "Small")

Then I put an '@' in front of that if statement, and now it's working like I expect.

I thought that once I'm inside of a code block starting with:

@{

...that I don't have to preprend if statements with '@'

Note that within the larger code block, I have other if statements that appear to be working just fine, without any preceding 'a':

@{
    if(Model.Content.HasValue("cprHighlights"))
    {
        var typedMultiNodeTreePicker = new DynamicXml(Model.Content.GetPropertyValue<string>("cprHighlights"));

        var typedPublishedMNTPNodeList = new List<string>();
        foreach (dynamic id in typedMultiNodeTreePicker)                
        {
            typedPublishedMNTPNodeList.Add(id.InnerText); 
        }
        var typedMNTPCollection = Umbraco.TypedContent(typedPublishedMNTPNodeList).Where(x => x != null);

        foreach (var item in typedMNTPCollection)
        {     
            <p>@item.Name</p>         
            <p>@item.Id</p>         
        }   


        if(typedMNTPCollection.Any()) 
        {
             <div class="homeHighlightsCarouselOutter">
             @if(size == "Small")
             {

                <div class="head headerColorHome with-rss">
                    <h3>@featureTitle</h3>
                </div> 

             }
            else {<p>its not</p>}
             </div>
        }



    }
}

What am I not understanding?