Bootstrap对齐不同列大小

Question

我有一个很大的形式和对齐的问题。我剪了一些字段，但演示会显示问题。

我在表单的开头有两列，有些行使用宽度的一半，有些行使用完整的witdh。而且，最后一个问题。如您所见textarea s与其他输入不对齐：  

我该如何解决？

DEMO

PS。我使用Bootstrap 4，但是，我认为这个问题也与Bootsrap 3有关。

.full-width {
  width: 100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://npmcdn.com/tether@1.2.4/dist/js/tether.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>
 <form novalidate>
   <div class="row">
      <div class="col-md-8">
         <div class="form-group row">
            <label for="field1" class="col-md-2 col-form-label">Text Area</label>
            <div class="col-md-10">
               <textarea id="field1" class="form-control"
                  cols="30" rows="4"></textarea>
            </div>
         </div>
      </div>
      <div class="col-md-4">
         <div class="form-group row">
            <div class="col-md-12">
               <div class="form-check">
                  <label class="form-check-label">
                  <input class="form-check-input" type="checkbox"> Checkbox 1
                  </label>
               </div>
               <div class="form-check">
                  <label class="form-check-label">
                  <input class="form-check-input" type="checkbox"> Checkbox 2
                  </label>
               </div>
               <div class="form-check">
                  <label class="form-check-label">
                  <input class="form-check-input" type="checkbox"> Checkbox 3
                  </label>
               </div>
            </div>
         </div>
      </div>
   </div>
   
   <div class="row">
   <div class="col-md-8">
      <div class="form-group row">
         <label for="field2" class="col-md-2 col-form-label">Input</label>
         <div class="col-md-10">
            <input id="field2" class="form-control"/>
         </div>
      </div>
   </div>
  </div>
   <div class="row">
<div class="col-md-12">
   <div class="form-group row">
      <label class="col-md-1 col-form-label">Options</label>
      <div class="col-md-11">
         <div class="row">
            <div class="col-md-6">
               <span>Label 1</span>
               <input type="radio" name="group1" value="Value 1"> Value 1
               <input type="radio" name="group1" value="Value 1"> Value 2
            </div>
            <div class="col-md-6">
               <span>Label 2</span>
               <input type="radio" name="group2" value="Value 1"> Value 1
               <input type="radio" name="group2" value="Value 2"> Value 2
            </div>
         </div>
         <div class="row">
            <div class="col-md-12">
               <div class="row">
                  <div class="col-md-11">
                     <textarea class="full-width"></textarea>
                  </div>
                  <div class="col-md-1">
                     <span">Icon</span>
                  </div>
               </div>
               <div class="row">
                  <div class="col-md-11">
                     <textarea class="full-width"></textarea>
                  </div>
                  <div class="col-md-1">
                     <span">Icon</span>
                  </div>
               </div>
            </div>
         </div>
      </div>
   </div>
</div>
<div>
</form>

Answer 1

问题是前两行嵌套在col-md-8中，未对齐的“选项”行嵌套在col-md-12中。

另外，清理代码中各种格式错误的HTML。

http://www.codeply.com/go/sCYzgdFXxa