VIDEO: MAKE IFRAMES PRETTY & RESPONSIVE
Custom CSS used in this VIDEO
.column1-portal-page .wysiwyg-content {
padding: 15px 0 15px 0 !important;
border:0 !important;
}
<div class=”sd-resp-container”>
<iframe class=”sd-resp-iframe” src=”https://youriframeurlgoeshere.com”></iframe>
</div>