<div>
  <p style="
    font-family: SQ Market;
    font-size: 18px;
    line-height: 24px;
    font-weight: 500;
  ">Virtual Tip Jar</p>
  <a target="_blank" href="https://checkout.square.site/pay/53e5bfa441e044b7b5e980a6f4ccf1b4" style="
    display: inline-block;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 18px;
    line-height: 48px;
    height: 48px;
    padding-left: 48px;
    padding-right: 48px;
    color: #ffffff;
    min-width: 165px;
    background-color: #000000;
    border-radius: 4px;
    text-align: center;
    box-shadow: 0 0 0 1px rgba(0,0,0,.1) inset;
  ">Donate</a>
</div>