anchor.diff:          border-right-style:none;
           border-top-style:none;
           border-bottom-style:none;
  +        margin-right:6px;
           padding-top:1px;
           padding-bottom:8px;
           position: relative;
  
positive.code:           <!-- <img src="images/tree_${structure}.png" align="top" height="16" width="15"/> -->
            <span class="tree_${structure}">
              <span class="ver"></span>
              <span class="hor">.</span>
            </span>
  
          </c:forEach>
  
negative.code:         border-right-style:none;
          border-left-style:none;
          border-top-style:none;
          margin-right:12px;
          color: white;
          position: relative;
          left: 10px;
  