textarea佈局

 　　<section class="feedback-content">
      <h4>您的意見</h4>
      <div class="inner">
        <textarea name="" id="" placeholder="請詳細描述您的意見和建議"></textarea>
        <span>10~200</span>
      </div>
    </section>

　　

<style lang="scss">
.inner {
        padding: 28px;
        border: 1px solid gray;
        textarea {
          width: 100%;
          height: 270px;
          line-height: 42px;
          font-size: 28px;
          border: none;
          resize: none;
          outline: none;
        }
        span {
          display: block;
          text-align: right;
        }
      }
    }
</style>