This is a test page

<div style="

  overflow: auto;

  display: flex;

  flex-direction: column;

  justify-content: flex-end;

  align-items: center;

  width: 259px;

  background: #FFFFFF;

  border: 1px solid rgba(0, 0, 0, 0.1);

  box-shadow: -2px 10px 5px rgba(0, 0, 0, 0);

  border-radius: 10px;

  font-family: Libre Franklin, SQ Market, Helvetica, Arial, sans-serif;

  ">

  <div style="padding: 20px;">

    <a target="_blank" href="https://square.link/u/URRovHSs?src=embed" style="

    display: inline-block;

    font-size: 18px;

    line-height: 48px;

    height: 48px;

    color: #ffffff;

    min-width: 212px;

    background-color: #8716d9;

    text-align: center;

    box-shadow: 0 0 0 1px rgba(0,0,0,.1) inset;

    border-radius: 6px;

  ">Buy now</a>

  </div>

    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Libre Franklin">

</div>