anchor.diff:  
         });
   
  -  });
  -
  -</script>
  -
  -<script>
  -  (function() {
  -    function adjustHeight(textareaElement, minHeight) {
  -        // compute the height difference which is caused by border and outline
  -        // 计算因边框和轮廓产生的高度差异
  +    });
  +  </script>
  +
  +  <script>
  +    (function () {
  +      function adjustHeight(textareaElement, minHeight) {
  +        // compute the height difference which is caused by border and outline 计算因边框和轮廓产生的高度差异
           var outerHeight = parseInt(window.getComputedStyle(el).height, 10);
           var diff = outerHeight - el.clientHeight;
   
  -        // set the height to 0 in case of it has to be shrinked
  -        // 设置高度为0以防需要收缩（高度）
  +        // set the height to 0 in case of it has to be shrinked 设置高度为0以防需要收缩（高度）
           el.style.height = 0;
   
  -        // set the correct height
  -        // el.scrollHeight is the full height of the content, not just the visible part
  -        // 设置正确的高度
  -        // el.scrollHeight 是文本内容的全部高度，而不仅仅是可见部分的。
  +        // set the correct height el.scrollHeight is the full height of the content, not just the visible part 设置正确的高度 el.scrollHeight 是文本内容的全部高度，而不仅仅是可见部分的。
           el.style.height = Math.max(minHeight, el.scrollHeight + diff) + 'px';
         }
   
  -    // we use the "data-adaptheight" attribute as a marker
  -    // 我们使用"data-adaptheight"属性作为一个标记
  -    var textAreas = document.querySelectorAll('textarea[data-adaptheight]');
  -
  -    // iterate through all the textareas on the page
  -    // 迭代本页所有的文本域
  -    for (var i = 0, l = textAreas.length; i < l; i++) {
  -      var el = textAreas[i];
  -
  -        // we need box-sizing: border-box, if the textarea has padding
  -        // 如果文本域有边距，我们需要设置box-sizing: border-box
  +      // we use the "data-adaptheight" attribute as a marker 我们使用"data-adaptheight"属性作为一个标记
  +      var textAreas = document.querySelectorAll('textarea[data-adaptheight]');
  +
  +      // iterate through all the textareas on the page 迭代本页所有的文本域
  +      for (var i = 0, l = textAreas.length; i < l; i++) {
  +        var el = textAreas[i];
  +
  +        // we need box-sizing: border-box, if the textarea has padding 如果文本域有边距，我们需要设置box-sizing: border-box
           el.style.boxSizing = el.style.mozBoxSizing = 'border-box';
   
  -        // we don't need any scrollbars, do we? :)
  -        // 我们不需要滚动条，不是么？ :)
  +        // we don't need any scrollbars, do we? :) 我们不需要滚动条，不是么？ :)
           el.style.overflowY = 'hidden';
   
  -        // the minimum height initiated through the "rows" attribute
  -        // 通过"rows"属性初始化的最小高度
  +        // the minimum height initiated through the "rows" attribute 通过"rows"属性初始化的最小高度
           var minHeight = el.scrollHeight;
   
  -        el.addEventListener('input', function() {
  +        el.addEventListener('input', function () {
             adjustHeight(el, minHeight);
           });
   
  -        // we have to readjust when window size changes (e.g. orientation change)
  -        // 当窗口大小改变时，我们需要重新调整高度（例如方向变化）
  -        window.addEventListener('resize', function() {
  +        // we have to readjust when window size changes (e.g. orientation change) 当窗口大小改变时，我们需要重新调整高度（例如方向变化）
  +        window.addEventListener('resize', function () {
             adjustHeight(el, minHeight);
           });
   
  -        // we adjust height to the initial content
  -        // 我们调整初始内容的高度
  +        // we adjust height to the initial content 我们调整初始内容的高度
           adjustHeight(el, minHeight);
         }
       }());
  
positive.code:           <th><%=t(:goods_bbd)%></th>
            <td colspan="2"><%= @groupbuy.goods_bbd.to_s %></td>
          </tr>
  
  
  
          <tr>
            <td colspan='3'>
  
negative.code: <% provide :title, t(:groupbuy_detail) %>
  <div class="row">
    <div class="large-2 columns">
      <%= image_tag @title_pic, class: 'profile-image' if @groupbuy %>
  