<!-- (3) Show only thumbnails -->
            <div class='item-thumbnail-only'>
              <b:if cond='data:post.thumbnail'>
                <div class='item-thumbnail'>
                  <a expr:href='data:post.href' target='_blank'>
                    <img alt='' border='0' expr:height='data:thumbnailSize' expr:src='data:post.thumbnail' expr:width='data:thumbnailSize'/>
                  </a>
                </div>
              </b:if>
              <div class='item-title'><a expr:href='data:post.href'><data:post.title/></a></div>
            </div>
            <div style='clear: both;'/>
          <b:else/>

<!-- (3) Show only thumbnails -->
            <div class='item-thumbnail-only'>
           
                <div class='item-thumbnail'>
   <a expr:href='data:post.href' expr:title='data:post.title'>
    <b:if cond='data:post.thumbnail'>
                    <img alt='' border='0' expr:height='data:thumbnailSize' expr:src='data:post.thumbnail' expr:width='data:thumbnailSize'/>
       <b:else/>
        <img alt='' border='0' expr:height='data:thumbnailSize' expr:width='data:thumbnailSize' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhM3ctm1F7DZifX7U_cx0Q6ygOMNl9nFqC4e2pFy_9Z39wh4kvnJ_j2yMB5ETiSDLh-N9BUhhoxM5vs3P0usX8zFRHPX9aBNK2vqfEAdJRMRjIDfaFzrDASm9PY0d4s77SN3Um6e8F6QO4/s72-c/default.png'/>
       </b:if>
                  </a>
                </div>      
             </div>
            <b:else/>

.popular-posts ul li {padding-right:0px; margin:-7px 0 -7px 0; float:right;width:33%;list-style-type:none;border:none;line-height:0px}
.popular-posts ul li img {width:80px;height:80px;opacity:1;filter:alpha(opacity=100);background:#fff;border:1px solid #818181;padding:3px;-webkit-transition: all 0.3s ease;-moz-transition: all 0.3s ease;transition: all 0.3s ease;}
.popular-posts ul li img:hover {background:#000;border:1px solid #000;}