How do get Decode theme to have auto page height?

I also saw this article about adding padding to the bottom of the body – do you think this would work? If so, how would it go in the code?

https://stackoverflow.com/questions/10865237/website-header-hiding-behind-content-when-position-is-fixed

You could try adding a bit of padding to the bottom of the page in conjunction with making the colophon a bit shorter.

.entry-content {
padding-bottom: 30px;
}

#colophon {
height: 35px;
}

OMG!! It works! Thank you so much Stephen for your great help!! You are a genius!

Here is the code I ended up with. I had to increase the height to get all the menu items to appear in mobile:

body {
	overflow: scroll;
}

#colophon {
	background: white;
	bottom: 0;
	font-size: 13px;
	height: 57px;
	position: fixed;
	padding: 0 30px;
	margin-bottom: 0;
	width: 100%;
}

.entry-content {
	padding-bottom: 30px;
}