Embedded YouTube video is supposed to autoplay on page load and initially load muted. User can then use a control to unmute as needed.
iOS overrides YouTube controls with native, and mute/unmute button permanently disappears. How to display mute/unmute button in IOS?
<style type="text/css">
.embed-container {
position: relative;
padding-bottom: 56.25%;
height: 0;
overflow: hidden;
max-width: 100%;
}
.embed-container iframe,
.embed-container object,
.embed-container embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
</style>
<div class="embed-container">
<iframe allowfullscreen="" frameborder="0" src="https://www.youtube.com/embed/cvRzPbeVp9I?rel=0&controls=1&showinfo=0&mute=1&autoplay=1&t=17s"></iframe>
</div>