UL a une marge à gauche
Pour une raison quelconque, dans mon pied de page, il y a un espace à gauche de mon ul, il n'est donc pas aligné avec le contenu au-dessus (texte d'appartenance, etc.) est pas un tel espace.
Voici à quoi ça ressemble: 
HTML:
<!DOCTYPE html>
<html>
<head>
<title>Ozanam Club </title>
<link rel="stylesheet" href="css/styles.css" />
<link rel="stylesheet" href="css/normalize.css"/>
<link rel="stylesheet" href="css/flexslider.css" type="text/css" media="screen" />
<link rel="stylesheet" href="css/fonts/Enigma.css" />
</head>
<body>
<div id="wrap">
<header>
<div id="logo"><a href="#"><img src="images/logo.png" height="157px" width="237px"></a></div>
<!--
<div class="social">
<ul>
<li><a href="#"><img src="images/icons/facebook.gif"/></a></li>
<li><a href="#"><img src="images/icons/Twitter.gif"/></a></li>
<li><a href="#"><img src="images/icons/youtube.gif"/></a></li>
</ul>
</div>
-->
<div id="navigation">
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Events</a></li>
<li><a href="#">Clubs</a></li>
<li><a href="#">Photos</a></li>
<li><a href="#">F.A.Q</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
</header>
<section class="slider">
<div class="flexslider">
<ul class="slides">
<li>
<img src="images/slider/image1.gif" />
</li>
<li>
<img src="images/slider/image2.gif" />
</li>
<li>
<img src="images/slider/image3.gif" />
</li>
</ul>
</div>
</section>
<div class="main">
<h1>Ozanam Club</h1>
<p>The first Ozanam Club was started in May 1989 by James Lynch, a member of the
St. Vincent De Paul society who himself had two children with learning difficulties
and who was concerned at the general lack of leisure provision for them.</p>
<p>The Ozanam Club is a Special Works Conference of the St. vincent De Paul Society.
The name of the clubs are called after Blessed Frederick Ozanam who is the founder
of the S.S.V.P. At this present time we have two clubs in Viewpark, an adults club
and a seperate club for younger members. We have an adults club in Hamilton and
Paisley and also a club in Carfin for younger members. </p>
<h1>Membership</h1>
<p>Membership is open to anyone who has disablities, regardless of their race or religious belief.</p>
<p>The aim of the clubs are a fun night out for our members and some temporary respite for parents. All of the clubs are run solely by volunteers who are disclosure checked prior to working with
vulnerable adults/children.</p><p> They are also made aware of the Adults/Children Protection Procedures and encouraged to attend an information session.</p>
<p>You can find more information on our a <a href="#">F.A.Q page.</a></p>
</div>
<div class="side">
<img src="images/events.gif" alt="Events" />
<a href="#" class="button">View</a>
</div>
<div class="side">
<img src="images/photos.gif" alt="Events" />
<a href="#" class="button">View</a>
</div>
</div>
<footer>
<div id="footer-wrap">
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Events</a></li>
<li><a href="#">Clubs</a></li>
<li><a href="#">Photos</a></li>
<li><a href="#">F.A.Q</a></li>
<li><a href="#">Contact</a></li>
</ul>
</div>
</footer>
</div>
</div>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script defer src="js/jquery.flexslider-min.js"></script>
<script>
$(window).load(function() {
$('.flexslider').flexslider({
animation: "slide"
});
});
</script>
</body>
</html>
CSS:
body {background: white; background: url('../images/grunge.png'); font-family: 'EnigmaticRegular';}
#wrap {margin: 0 auto; width: 100%; max-width: 1000px;}
header {position: relative;}
#logo {margin: 20px 0 0 0; display: block; float: left;}
.social ul { z-index: 1; list-style: none; position: absolute; top: 0; right: 0;}
.social li { float: left;}
.social img { height: 35px; width: 35px;}
#navigation { width: 100%; max-width: 1000px; height: 200px; position: relative; }
#navigation ul { padding: 0.5em; background: white; border-radius: 5px; border-bottom: solid 3px #3c88bc; display: inline-block; position: absolute; bottom: 0; right: 0;}
#navigation li { padding-left: 0.5em; padding-right: 0.5em; list-style: none; font-style: none; font-family: 'EnigmaticBold'; border-right: solid 1px black;}
#navigation li:last-child { border: 0;}
#navigation ul,
#navigation li {float: left;}
#navigation a { color: #195c8a; text-decoration: none; font-weight: bold;}
#navigation a:hover { color: #13405f;}
.main { float: left; margin-top: 20px; width: 625px;}
.main h1 {font-family: 'EnigmaticBold'; color: #13405f; }
.main p {color: #13405f;}
.main a {color: inherit; }
.side {float: right; margin-top: 20px; border-radius: 10px; margin-bottom: 10%; }
.side a { text-decoration: none; color: #3c88bc;}
.button { font-size: 14px;font-family: 'EnigmaticBold'; display: block; width: 100px; margin: 0 auto; text-align: center; background: #fff; padding: 5px; border-radius: 10px; border-bottom: solid 3px #3c88bc;}
footer { height: 100px; background: #195c8a; clear: both; }
#footer-wrap {margin: 0 auto; padding: 0; width: 100%; max-width: 1000px; }
#footer-wrap li { float: left; list-style: none; padding-right: 3em;}
#footer-wrap a {color: white ;text-decoration: none;}
L'élément <ul> Possède un remplissage et une marge inhérents au navigateur par défaut. Dans votre cas, utilisez
#footer ul {
margin: 0; /* To remove default bottom margin */
padding: 0; /* To remove default left padding */
}
ou une réinitialisation du navigateur CSS ( https://cssreset.com/ ) pour y faire face.
Je ne vois aucun margin ou margin-left déclarations pour #footer-wrap li.
Cela devrait faire l'affaire:
#footer-wrap ul,
#footer-wrap li {
margin-left: 0;
list-style-type: none;
}
par défaut <UL/> contient un remplissage par défaut
essayez donc d'ajouter du style à padding:0px en classe css ou css en ligne