Extra space underneath navigation bar - html

Question

I'm currently trying to make a website, and I managed to create a navigation bar. However, there is a weird "extra" space between my navigation bar. It was working fine at first but after I referenced a JQuery. However, I doubt the JQuery is the one that caused the problem as the site looks the same even after I took it out. Here's a screenshot of the problem. I'm trying to get rid of the circled part.
My HTML code:
<div id="nav"> <!-- Navigation Bar -->
<nav>
<ul>
<li><a class="selected" href="#">Home</a></li>
<li>About Me</li> <!-- Link to about page -->
<li class="drop">
Games
<div class="drop-content">
Red Faction: Guerrilla <!-- Contains links to the respective pages -->
Way of the Samurai 3
Singularity
</div>
</li>
<li>Reviews</li>
<li>External Store</li> <!-- Link to external site -->
<li>Videos</li> <!-- Contains links to Youtube -->
<li>Feedback</li> <!--Feedback form-->
And here's the stylesheet:
#nav nav{ /* Navigation bar*/
padding-top: 5%;
margin-bottom: 5% }
#nav ul {
list-style-type: none;
margin: 0;
background-color: #1C86EE;
padding: 0;
position: relative;
width: 100%;
bottom: 0;
display: inline-block }
#nav li {
float: left;
width: 14% }
li a, .dropbtn {
display: inline-block;
color: #FFFFFF;
text-align: center;
padding-left: 15%;
padding-right: 15%;
text-decoration: none }
.selected {
background-color: #6CCC0A;
padding-right: 25% }
li a:hover, .drop:hover .dropbtn {
background-color: #BFA810 }
a {
padding-top: 1em;
padding-bottom: 1em }
li.drop {
display: inline-block }
.drop-content {
display: none;
position: absolute;
background-color: #970707;
min-width: 14%;
box-shadow: 0px 8px 16px 0px #000000;
z-index: 100 }
.drop-content a {
color: #FFFFFF;
padding: 15px 20px;
display: block;
text-align: left }
.drop-content a:hover {
background-color: #02BBC4 }
.drop:hover .drop-content {
display: block;
border: 1px solid black;
position: absolute } /*End of navigation*/
* { /* index style */
box-sizing:border-box
}
body {
font-family: Verdana,sans-serif;
margin:0
}
.slideshow-fade {
display:none
}
/* Slideshow container */
.slideshow {
max-width: 100%;
position: relative;
margin: auto;
}
.slideshow img {
opacity: 0.7
}
/* Next & previous buttons */
.prev, .next {
cursor: pointer;
position: absolute;
top: 50%;
width: auto;
padding: 1em;
margin-top: -1em;
color: #FFFFFF;
font-weight: bold;
font-size: 1.5em;
transition: 0.6s ease;
border-radius: 0 3px 3px 0;
}
/* Position the "next button" to the right */
.next {
right: 0;
border-radius: 3px 0 0 3px;
}
/* On hover, add a black background color with a little bit see-through */
.prev:hover, .next:hover {
background-color: rgba(0,0,0,0.8);
}
/* Caption text */
.text {
color: #000000;
font-size: 1.3em;
padding: 1% 2%;
position: absolute;
bottom: 2%;
width: 100%;
text-align: center;
}
/* Number text (1/3 etc) */
.number {
color: #000000;
font-size: 1em;
padding: 8px 12px;
position: absolute;
top: 0;
}
/* The dots/bullets/indicators */
.dot {
cursor: pointer;
height: 1em;
width: 4%;
margin: 0 2px;
background-color: #bbbbbb;
border-radius: 50%;
display: inline-block;
transition: background-color 0.6s ease;
}
.active, .dot:hover {
background-color: #717171;
}
/* Fading animation */
.fade {
-webkit-animation-name: fade;
-webkit-animation-duration: 1.5s;
animation-name: fade;
animation-duration: 1.5s;
}
#-webkit-keyframes fade {
from {opacity: .4}
to {opacity: 1}
}
#keyframes fade {
from {opacity: .4}
to {opacity: 1}
}
/* On smaller screens, decrease text size */
#media only screen and (max-width : 720px ){
.prev, .next,.text {font-size: 11px}
}
.slideshow-fade a {
color: #FFFFFF
}
.slideshow-fade a:visited {
color: #5115D0
} /*End of style for index*/
footer { /*Footer*/
background: #000000;
width: 100%;
height: 5%;
position: relative;
bottom: 0;
left: 0;
padding-top: 2%;
overflow: hidden;
}
footer p {
font-family: arial, calibri, sans-serif;
color: #FFFFFF;
text-align: center;
padding-bottom: 2%;
} /*End of footer*/
Any help will be much appreciated. Thank you.
Here is the jsfiddle file to make it more convenient to see the problem. https://jsfiddle.net/8xutoea5/
Edit: Added more CSS codes.
Edit: I solved the problem. Thanks everyone for taking the time to solve this problem.

Answer 1

It appears to be a margin somewhere else in your CSS, not provided here, that is causing the issue. You could try setting margin-bottom:0; a few places to see if that solves it.
#nav nav ul li {
margin-bottom: 0;
padding-bottom: 0;
}
#nav nav ul li a {
margin-bottom: 0;
}
Or provide the rest of your style sheet.

Answer 2

It's most likely because you have your ul as inline-block, that will cause some space after elements. Also you have float on your li without a clearfix on nav.
You can solve this in various ways, here is one where you can use display: flex; and remove the float: left; on li. This is a pretty solid base you can build on with changing the justify-content property. You can find a awesome guide to flexbox over at css-tricks.com
UPDATE
I made some updates to the fiddle to solve the problem. Please note the code on top, also I made some other changes. Write if there is something unclear
* {
box-sizing: border-box;
}
jsfiddle
#nav ul {
list-style-type: none;
margin: 0;
background-color: #1C86EE;
padding: 0;
position: relative;
width: 100%;
bottom: 0;
display: flex;
justify-content: space-between;
}
#nav li {
width: 14%;
}

Answer 3

It's caused by the section "External Store", it's too long and it wraps. You can make it shorter or force a "no-wrap".
With the css property white-space with the value nowrap.
You have no classes on your internal tags so I would suggest add a class to the a tags and add the rule to it.
a.listLink{
white-space: nowrap;
}
Or you can just add a style attribute to that specific tag but I don't find that solution cool enough.