Posted 2nd of January 2010 by Kern Herskind Nightingale

I recently came across a (yet another) IE7 annoyance. If you try and style a HR tag with a background image it is seemingly impossible to avoid the border around the image in IE7. After scouring the web I came across a solution that solves the problem and retains the HR tag (I reckon that is the best solution from a semantic point of view).

So how do I go about having Sitecore’s Rich Text Editor insert HR’s like this:

<div class="hr"><hr /></div>

There are two obvious solutions:

  1. Add the above code as a HTML snippet in the RTE or
  2. Rely on the RTE to insert plain HR tags and then replace HR tags in the fieldRenderer pipeline.

I chose to explore the 2nd option as I’m skeptical about editors adding HTML snippets.

First I did the CSS to handle>hr as suggested in previously mentioned article. The I created a class to handle the string replacement:

namespace Herskind.Processors
    public class RichTextFixes
        public void Process(RenderFieldArgs args)
            switch (args.FieldTypeKey)
                case "rich text":
                        args.Result.FirstPart = ReplaceHRs(args.Result.FirstPart);
                        args.Result.LastPart = ReplaceHRs(args.Result.LastPart);

        private string ReplaceHRs(string text)
            text = text.Replace("<hr>", "<hr/>");
            text = text.Replace("<hr/>", "<hr />");
            return text.Replace("<hr />", "<div class=\"hr\"><hr/></div>");

I know that there might be a more elegant way of doing the replacement, but for illustration purposes this will do. 

And added it as the last step of the _renderField _pipeline by creating a configuration include file (ie. website/App_Config/Include/RteFix.config):

<configuration xmlns:patch="">
        <processor type="Herskind.Processor.RichTextFixes, Herskind" />

Note: The processor type consists of to pieces of information. The fully expended class name (basically the namespace + the class name) followed by the name of the assembly.

Now the editors can insert plain HR’s in the RTE and when the field is rendered using <sc:text /> all hr tags are enclosed in the <div class”hr”/>.

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About the author

Kern is a Sitecore Specialist with more than 10 years experince achitecting and developing Sitecore solutions. Kern was awarded Sitecore MVP in 2009, 2011 and again in 2015.
Currently Kern is helping the Sitecore Product team in shaping the future of the platform.

Kern Herskind Nightingale