clickable header

All the code you need is already there.
Perhaps a visit to https://w3schools.org/ and a look into the HTML tutorials would be a big help to you.

I’m still confused. I’m asking how to make the header image clickable to link back to my main page.
My site is continuous-play.com

thanks, that fixed it

Actually, you don’t need to put the image in the html, you can make it work from css, as I have done for example on https://stijlstek.nl/greek2me/
Your html could be something like:
<div id="header">
<h1 title="Back to the homepage">Continuous play</h1>
</div>
Then in your css you do something like:
h1 a {
background: url("header.jpg") no-repeat;
display: block;
text-indent: -7777px;
height: 200px;
width: 500px;
}

Do this:
.header {
background-image: url(header.jpg);
display: block;
width: 500px;
height: 200px;
}
Then call it not by using a DIV but by using:

or, just to confuse you more, id go with this
https://fernando.dubtribe.com/archives/2004/10/10/make-my-head-a-clickable-link/

Thanks for all your help. I’m getting it working now!