前端：bootstrap textarea自适应父容器大小

代码

<div class="panel panel-success">
    <div class="panel-heading">
        <h3 class="panel-title">详细log</h3>
    </div>
    <div class="panel-body">
      <textarea class="form-control" id="log" style="width: 100%; height: 400px ;overflow: auto;word-break: break-all; resize: none;"></textarea>
    </div>
</div>

效果