<iframe id="pinnacleFrame" src="https://fv-8laio5.tender88.com/tr/?isLogout=true&amp;returnUrl=https%3a%2f%2ffv-8laio5.tender88.com%2f" frameborder="0"></iframe>
<style type="text/css">
  html, body {
    width: 100% !important;
  }

  #pinnacleFrame {
    width: 100% !important;
    border: none;
    margin: 0 auto;
    display: block;
    height: 100vh;
    height: calc(100vh - 128px);
  }
</style>