Element is not changing width based on image floating to right

This is my test page:
http://bbdesign.com/herbein.com/who-we-are.htm

Scroll down to the biography section for WILLIAM A. MORGAN. I want the double divider lines to not go over top the image of the person. I have the image floating to the right, and the text runs around it the way I want. But for some reason the divider lines to not.

The dividers are: div.bio-divider

Here is the CSS for the dividers:
div.bio-divider{width:90%;
height:1px;
margin:0 auto;
padding:0;
border-top:1px solid #4f4949;
border-bottom:1px solid #4f4949;
opacity:0.7;}

Here is the CSS for the image:
img#hwm-team-1{float:right;
z-index:999;
margin:-170px 50px 0 0;}

Yes, my dividers are set to 90%. Would a floating image not still make those collapse narrower? My paragraph tags are also set to 90% but they are doing exactly what I want.

Here is the HTML:

<div id="hwm-team" class="contentblock">
	<h1>{ HWM TEAM }</h1>

	<div class="clearfix">
		<img id="hwm-team-1" src="img/ph_morgan.png" alt="" />

		<div class="bioblock">
			<div class="bio-divider"></div>

			<div class="hwm-team-title">
				<h3>WILLIAM A. MORGAN, <span class="credentials">CPA PFS</span></h3>

				<h4>PRESIDENT, WEALTH STRATEGIST<br />
					PERSONAL FINANCIAL SPECIALIST</h4>

				<h5><a href="mailto:wamorgan@herbeinwealth.com">wamorgan@herbeinwealth.com</a><img src="img/lg_divider.png" /><a href="#"><img src="img/lg_linkedin.png" alt="LinkedIn" /></a><img src="img/lg_divider.png" /><a href="#"><img src="img/lg_twitter.png" alt="Twitter" /></a></h5>
			</div>

			<div class="bio-divider"></div>

			<p><span class="boldintro">BILL MORGAN</span> has been involved in the financial service industry for over thirty years. Bill offers a unique skill set that combines strong tax knowledge and wealth management expertise. Prior to founding Herbein Wealth Management, Bill served as Director of Tax Services at Herbein + Company, Inc., a regional accounting firm. Bill is a Certified Public Accountant and Personal Financial Specialist. He focuses on creating comprehensive wealth strategies for his clients in order to guide them through their financial challenges.</p>

			<p>Bill is uniquely positioned to work with high net worth clients. With roots in the CPA profession, Bill has earned the trust of his clients by consistently delivering objective advice and serving as their advocate. Bill values the trust his clients place in him and leverages his tax expertise by combining it with significant investment knowledge to create a roadmap for clients to achieve their financial goals.</p>
		</div>
	</div>
</div>

Select allOpen in new window

Some minor change I can make to my markup or CSS to fix this?
Thank you!