Navigation UL/LI additional space - html

Question

It's one of those days and I can not figure out why I'm getting a space to the left of each of the LI tags in the following code. If you hover over, the menu items you'll see what I mean.
http://jsfiddle.net/midnitesonnet/C2Dub/
<div id="wrapper">
<div id="menu">
<ul>
<li>Home</li>
<li>Home</li>
<li>Home</li>
</ul>
</div>
<div id="content">Content</div>
<div id="footer">Footer</div>
</div>

Answer 1

I can not figure out why I'm getting a space to the left of each of the LI tags
Because you format them with display:inline-block - and have whitespace between the tags. That's basic "HTML behavior", that any whitespace between two inline(-block) elements is condensed to one space character when displayed.
Either float the LI instead, or write them without whitespace between the tags, meaning ...</li><li>...

Answer 2

try this
http://jsfiddle.net/C2Dub/4/
/* CSS Document */
body {
font-family: Arial, Helvetica, sans-serif;
font-size: 0.9em;
margin-top: 0px;
background-color: #f5f5f5;
}
#wrapper {
background-color: #ffffff;
width: 1000px;
margin: auto;
-webkit-box-shadow: 0px 0px 6px rgba(50, 50, 50, 0.64);
-moz-box-shadow: 0px 0px 6px rgba(50, 50, 50, 0.64);
box-shadow: 0px 0px 6px rgba(50, 50, 50, 0.64);
/*-webkit-border-radius: 15px;
-moz-border-radius: 15px;
border-radius: 15px;*/
}
#menu {
background: #505050;
background: -moz-linear-gradient(top, #505050 0%, #343434 50%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#505050), color-stop(50%,#343434));
background: -webkit-linear-gradient(top, #505050 0%,#343434 50%);
background: -o-linear-gradient(top, #505050 0%,#343434 50%);
background: -ms-linear-gradient(top, #505050 0%,#343434 50%);
background: linear-gradient(to bottom, #505050 0%,#343434 50%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#505050', endColorstr='#343434',GradientType=0 );
min-height: 26px;
color: #CCC;
}
#menu ul {
display: block;
height: 39px;
list-style: none outside none;
margin: 0;
padding: 0;
}
#menu li {
margin: 0;
display: inline-block;
height: 39px;
border-right: 1px solid rgb(0, 0, 0);
padding: 0px 20px !important;
line-height: 39px;
list-style: none;
float:left;
}
#menu li a {
display: inline-block;
width: 99%;
color: #CCC;
text-decoration: none;
}
#menu li:hover {
background: #6b6b6b;
background: -moz-linear-gradient(top, #6b6b6b 0%, #4c4c4c 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#6b6b6b), color-stop(100%,#4c4c4c));
background: -webkit-linear-gradient(top, #6b6b6b 0%,#4c4c4c 100%);
background: -o-linear-gradient(top, #6b6b6b 0%,#4c4c4c 100%);
background: -ms-linear-gradient(top, #6b6b6b 0%,#4c4c4c 100%);
background: linear-gradient(to bottom, #6b6b6b 0%,#4c4c4c 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#6b6b6b', endColorstr='#4c4c4c',GradientType=0 );
}
#content {
min-height: 600px;
padding: 5px;
}
#footer {
min-height: 50px;
background: #f4f7f5;
background: -moz-linear-gradient(top, #f4f7f5 0%, #edf5f7 37%, #d3e8e6 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#f4f7f5), color-stop(37%,#edf5f7), color-stop(100%,#d3e8e6));
background: -webkit-linear-gradient(top, #f4f7f5 0%,#edf5f7 37%,#d3e8e6 100%);
background: -o-linear-gradient(top, #f4f7f5 0%,#edf5f7 37%,#d3e8e6 100%);
background: -ms-linear-gradient(top, #f4f7f5 0%,#edf5f7 37%,#d3e8e6 100%);
background: linear-gradient(to bottom, #f4f7f5 0%,#edf5f7 37%,#d3e8e6 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f4f7f5', endColorstr='#d3e8e6',GradientType=0 );
border-top: 1px #D2D2D2 solid;
}

Answer 3

This seems to work, I floated your li's, removed some padding and changed the height of the menu: http://jsfiddle.net/C2Dub/5/
#menu {
background: #505050;
background: -moz-linear-gradient(top, #505050 0%, #343434 50%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#505050), color-stop(50%,#343434));
background: -webkit-linear-gradient(top, #505050 0%,#343434 50%);
background: -o-linear-gradient(top, #505050 0%,#343434 50%);
background: -ms-linear-gradient(top, #505050 0%,#343434 50%);
background: linear-gradient(to bottom, #505050 0%,#343434 50%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#505050', endColorstr='#343434',GradientType=0 );
min-height: 39px;
color: #CCC;
}
#menu ul {
display: block;
padding: 0;
margin: 0;
list-style: none;
}
#menu li {
margin: 0;
float: left;
height: 19px;
border-right: 1px solid rgb(0, 0, 0);
padding: 10px 20px !important;
list-style: none;
}

Answer 4

U have some whitespace characters between your HTML code try to put the li tags on eachtoher:
<ul>
<li>Home</li>
<li>Home</li>
<li>Home</li>
</ul>
This solved the problem in the Fiddle.