[Слейп]

Готовый вариант:

<div class="work-box-news">
	        <div class="work-box_center-news">
	            <div class="left-area-work"></div>
	            <div class="include-work_area"></div>
                       <div style="clear: both;"></div>
	        </div>
</div>

.work-box-news {    
    background:#F0F0F0;    
    min-height:800px;    
    border-bottom: 1px solid #C1C1C1;
    border-top: 1px solid white;       
    text-align: center;  
}

.work-box_center-news {   
    margin: 0 auto;
    min-height: 800px;
    padding: 20px 0;
    position: relative;
    text-align: left;
    width: 940px; 
}


.left-area-work{
    border:1px solid #929292;
    background: #FAFAFA;    
    width: 240px;    
    min-height: 723px;    
    float:left; 
    position:relative;
    text-align: left; 
}

.include-work_area{    
    position: relative;        
    width: 650px;    
    min-height: 500px;
    font-family: PT Sans;
    left:25px;      
    float:left;       
    text-align: left; 
}