More than once I've been asked to use "nicer" images or small logos in place of the typical HTML bullet or the little orange square bullet that SharePoint usually displays for bulleted lists.
Step 1 - Create, Reuse, or Adapt Image to be used as Bullet
So the first thing I usually do is I create or adapt a bullet from images the customer might provide, or I create one from scratch using an imaging application such as Photoshop or Fireworks.
So once you have your image, upload it to a library of your choice. When it comes to elements that I'm going to be using as part of my custom look and feel, I have a tendency to "hide" them in places my users won't be able to find easily. More than once I ended up with that "loverly" red X in place of images because my customers would not know what the file is and delete it. So I usually create a Master Page folder within the Style Library and I upload (and publish) all my images for custom look and feel there. So this example will assume that. We will also assume the name for the image is divbullet.gif.
Step 2 - Create The Necessary CSS Class Definitions
In my copy of the corev4.css file, I create a class that usually looks something like this:
font-family: Verdana, Helvetica, Arial, sans-serif;
padding: 4px 0px 0px 18px;
Step 3 - Create The Necessary Item Styles
After making a copy of Microsoft's original Style Sheet, modify your copy to include a style that will be used by the CQWP.
<xsl:with-param name="Title" select="@MyLink"/>
<xsl:with-param name="UrlColumnName" select="'URL'"/>
<xsl:if test="@OpenInNewWindow = 'True'" >_blank</xsl:if>
<div id="linkitem" >
<!-- Apply special bullet styles -->
<div class="myBullet" >
<!-- Link to item -->
<xsl:value-of select="substring-before($DisplayTitle,', ')"></xsl:value-of>
<xsl:value-of select="substring-after($DisplayTitle,', ')"></xsl:value-of>
Go to the page where you would like to display the links, insert a CQWP, open its tool pane, select the custom links list within Query, apply filters if any (such as DisplayYN), remove chrome, provide a name and make any other changes that you may see fit. Then export the web part to your computer, open it using Notepad, and make the following changes:
<property name="ItemXslLink" >/sites/SiteName/Style Library/XSL Style Sheets/CUSTOMItemStyle.xsl</property>
Within the Styles section of the web part tool part, select MyLinks at the Item Style drop-down list.
Select [Apply] and [OK] at the bottom of the tool part.