How do I make the footer content all in the center of the footer?

So the little nav section is at the bottom and the other two sections are at the top of the footer.

Also how would I remove the tiny bit of white space left at the bottom of the page?

Thank you for any help, code is below.

.footer{
	display: flex;
	justify-content: space-around;
	flex-direction: row;
	margin: 0 auto;
	align-items: center;
	background: #000000;
	color: #fff;
	margin-bottom: -25px;
}
.footer-nav a{
	font-size: 16px;
	text-decoration: none;
	color:#fff;
	position: relative;
}
.mac{
	text-decoration: none;
	color: #fff;
}

Okay so now I have it so the copyright and designed by are centered in the middle vertically but the nav buttons are still touching the bottom of the footer.

There is also still white space at the bottom.

HTML
	<div class="footer"><nav class='footer-nav'><ul><li><a href="index.html">Home</a></li><li><a href="about.html">About</a></li><li><a href="careers.html">Careers</a></li><li><a href="contact.html">Contact</a></li></ul></nav><span>Website Designed by <a class='mac' href='https://machooper.com'>Mac Hooper</a></span><span>Copyright &copy Vegan Restaraunt</span></div>

Okay so now I have it so the copyright and designed by are centered in the middle vertically but the nav buttons are still touching the bottom of the footer.

There is also still white space at the bottom.

HTML

Okay so now I have it so the copyright and designed by are centered in the middle vertically but the nav buttons are still touching the bottom of the footer.

There is also still white space at the bottom.

HTML Okay so now I have it so the copyright and designed by are centered in the middle vertically but the nav buttons are still touching the bottom of the footer.

There is also still white space at the bottom.

Should mention that the UL and LI are set to display inline elsewhere in the css.