C# - HtmlTextArea Attributes Display Below The Ddls And New Line

I'd like to change some of the attributes of an HtmlTextArea in a SharePoint web part that I'm developing in C#. The HtmlTextArea is being used as a customized display for some Sql Server 2005 data that I'm pulling in and I'd like to change the font, color, etc., and make it read-only. I see that there are a few methods, such as HtmlTextArea.Attributes.Add, HtmlTextArea.Attributes.AddAttributes, and HtmlTextArea.Attributes.CssStyle, but I'm not sure if these are the proper ones to use, nor how to use them. I know that with an ASP.NET TextArea control I can simply use inline CSS, so I'm trying to figure out a way to set that inline CSS from within C#.

Also, I'd like to find out a way to add a newline in between controls, just to aid in placement. I have laid out all of my controls in CreateChildControls, but I don't see how I can get control over their placement. For instance, I have something like:

protected override void CreateChildControls()
{
customers = new DropDownList();
customers.ID = "customers";
Controls.Add(customers);
machines = new DropDownList();
machines.ID = "machines";
Controls.Add(machines);
specsOutput = new HtmlTextArea();
specsOutput.ID = "specsOutput";
Controls.Add(specsOutput);
}

I would like for the HtmlTextArea to be displayed below the ddls.