Answers for "how to center an iframe in a dic"

center iframe

<div class="iframe-container">
  <!--iframe link is the link to the jsfiddle-->
  <iframe src="https://jsfiddle.net/8z9s1t6x/2/"></iframe>
</div>

<style>
  .iframe-container {
		text-align:center;
  		width:100%;
  }
</style>

Center an iframe

div, iframe {
    width: 100px;
    height: 50px;
    margin: 0 auto;
    background-color: #777;
}

iframe {
    display: block;
    border-style:none;
}