<iframe width="100%" height="400" src="https://www.youtube.com/embed/xiq5euezOEQ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>

<style>
  iframe{
    border-radius: 5px;
    max-width: 700px;
    margin-left:auto;
    margin-right:auto;
    display: block;
  }
</style>
