How to add a third column for SKU in a 4x6 packing slip?

[david891]

Hello,

Currently using the code below for a 4x6 packing slip. 

How can I have ITEM | QUANTITY | SKU on it? 

I am not sure how to create the 3rd column within the code.

Thank you

<div class="wrapper">
  <div class="header">
    <div class="shop-title">
      <p class="to-uppercase">
        <img src="https://cdn.shopify.com/s/files/1/0528/1441/3996/files/ACC_Black_200x200.fw.png?v=1611126157" style="width: 200x; height: 200px;">
      </p>
    </div>
    <div class="order-title">
      <p class="text-align-right">
        Order {{ order.name }}
      </p>
      <p class="text-align-right">
        {{ order.created_at | date: "%e %B %Y" }}
      </p>
    </div>
  </div>
  <div class="customer-addresses">
    <div class="shipping-address">
      <p class="subtitle-bold to-uppercase">
        Ship to
      </p>
      <p class="address-detail">
        {% if shipping_address != blank %}
          {{ shipping_address.name }}
          {% if shipping_address.company != blank %}
            <br>
            {{ shipping_address.company }}
          {% endif %}
          <br>
          {{ shipping_address.address1 }}
          {% if shipping_address.address2 != blank %}
            <br>
            {{ shipping_address.address2 }}
          {% endif %}
          {% if shipping_address.city_province_zip != blank %}
            <br>
            {{ shipping_address.city_province_zip }}
          {% endif %}
          <br>
          {{ shipping_address.country }}
        {% else %}
          No shipping address
        {% endif %}
      </p>
    </div>
    <div class="billing-address">
      <p class="subtitle-bold to-uppercase">
        Bill to
      </p>
      <p class="address-detail">
        {% if billing_address != blank %}
          {{ billing_address.name }}
          {% if billing_address.company != blank %}
            <br>
            {{ billing_address.company }}
          {% endif %}
          <br>
          {{ billing_address.address1 }}
          {%  if billing_address.address2 != blank %}
            <br>
            {{ billing_address.address2 }}
          {% endif %}
          {% if billing_address.city_province_zip != blank %}
            <br>
            {{ billing_address.city_province_zip }}
          {% endif %}
          <br>
          {{ billing_address.country }}
        {% else %}
          No billing address
        {% endif %}
      </p>
    </div>
  </div>
  <hr>
  <div class="order-container">
    <div class="order-container-header">
      <div class="order-container-header-left-content">
        <p class="subtitle-bold to-uppercase">
          Items
        </p>
      </div>
      <div class="order-container-header-right-content">
        <p class="subtitle-bold to-uppercase">
          Quantity
        </p>
      </div>
    </div>
    {% for line_item in line_items_in_shipment %}
      <div class="flex-line-item">
        <div class="flex-line-item-description">
          <p>
            <span class="line-item-description-line">
              <strong>{{ line_item.title }}</strong>
            </span>
            {% if line_item.variant_title != blank %}
              <span class="line-item-description-line">
                {{ line_item.variant_title }}
              </span>
            {% endif %}
          </p>
        </div>
        <div class="flex-line-item-quantity">
          <p class="text-align-right">
            {{ line_item.shipping_quantity }}
          </p>
        </div>
      </div>
    {% endfor %}
  </div>
  {% unless includes_all_line_items_in_order %}
    <hr class="subdued-separator">
    <p class="missing-line-items-text">
      There are other items from your order not included in this shipment.
    </p>
  {% endunless %}
  <hr>
  {% if order.note != blank %}
    <div class="notes">
      <p class="subtitle-bold to-uppercase">
        Notes
      </p>
      <p class="notes-details">
        {{ order.note }}
      </p>
    </div>
  {% endif %}
  <div class="footer">
    <p>
      Thank you for your custom!
    </p>
    <p>
      <strong>
        American Coffee Club is a trading name of DS Thompson Group Limited. 
      </strong>
      <br>
      Suite 8, 10 Dock Street, Dundee, DD1 4BT
      <br>
      info@americancoffeeclub.co.uk 
      <br>
      {{ shop.domain }}
    </p>
  </div>
</div>
<style type="text/css">
  body {
    font-size: 30px;
  }

  * {
    box-sizing: border-box;
  }

  .wrapper {
    width: 1020px;
    margin: auto;
    padding: 1em;
    font-family: "Noto Sans", sans-serif;
    font-weight: 250;
  }

  .header {
    width: 100%;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    flex-direction: row;
    align-items: top;
  }

  .header p {
    margin: 0;
  }

  .shop-title {
    -webkit-box-flex: 6;
    -webkit-flex: 6;
    flex: 6;
    font-size: 1.9em;
  }

  .order-title {
    -webkit-box-flex: 4;
    -webkit-flex: 4;
    flex: 4;
  }

  .customer-addresses {
    width: 100%;
    display: inline-block;
    margin: 1em 0;
  }

  .address-detail {
    margin: 0.35em 0 0;
    line-height: 1.5;
  }

  .subtitle-bold {
    font-weight: bold;
    margin: 0;
    font-size: 0.85em;
  }

  .to-uppercase {
    text-transform: uppercase;
  }

  .text-align-right {
    text-align: right;
  }

  .shipping-address {
    float: left;
    min-width: 14em;
    max-width: 50%;
  }

  .billing-address {
    padding-left: 16em;
    min-width: 14em;
  }

  .order-container {
    padding: 0 0.35em;
  }

  .order-container-header {
    display: inline-block;
    width: 100%;
    margin-top: 0.7em;
  }

  .order-container-header-left-content {
    float: left;
  }

  .order-container-header-right-content {
    float: right;
}

  .flex-line-item {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    flex-direction: row;
    align-items: center;
    margin: 0.7em 0;
    page-break-inside: avoid;
  }

  .flex-line-item-description {
    -webkit-box-flex: 9;
    -webkit-flex: 9;
    flex: 9;
  }

  .line-item-description-line {
    display: block;
  }

  .flex-line-item-description p {
    margin: 0;
    line-height: 1.5;
  }

  .flex-line-item-quantity {
    -webkit-box-flex: 1;
    -webkit-flex: 1;
    flex: 1;
  }

  .subdued-separator {
    height: 0.035em;
    border: none;
    color: lightgray;
    background-color: lightgray;
    margin: 0;
  }

  .missing-line-items-text {
    margin: 0.7em 0;
    padding: 0 0.35em;
  }

  .notes {
    margin-top: 1em;
  }

  .notes p {
    margin-bottom: 0;
  }

  .notes .notes-details {
    margin-top: 0.35em;
  }

  .footer {
    margin-top: 1em;
    text-align: center;
    line-height: 1.5;
  }

  .footer p {
    margin: 0;
    margin-bottom: 0.7em;
  }

  hr {
    height: 0.07em;
    border: none;
    color: black;
    background-color: black;
    margin: 0;
  }
</style>