Form dot line CSS - SCSS

.header_bill {

  ul {

    list-style-type: none;

    padding-left: 0;

  }

  ul li {

    border-bottom: 2px dotted #ccc;

    line-height: 1.7em;

    text-align: right;

    clear: both;

    margin: 0.5em 0 0 0;

    padding-top: 10px;

  }

  span.definition {

    float: left;

    font-weight: 600;

  }

  span {

    padding: 0;

    border: 2px solid #fff;

    height: 20px;

    display: flex;

    justify-content: center;

  }

}

<div class="header_bill">

    <ul>

        <li>

            <span class="definition">Tờ trình nội bộ:</span>

            <span class="defined">SH987HK6KYS</span>

        </li>

        <li>

            <span class="definition">Ngày yêu cầu:</span>

            <span class="defined">27-06-2021</span>

        </li>

        <li>

            <span class="definition">Mục đích:</span>

            <span class="defined">Mua máy in</span>

        </li>

        <li>

            <span class="definition">Loại nghiệp vụ:</span>

            <span class="defined">Mua TSCĐ</span>

        </li>

        <li>

            <span class="definition">Diễn giải:</span>

            <span class="defined">Máy in canon 2021</span>

        </li>

    </ul>

</div>