CSS loading odd on first view, after page refresh everything is fine? - css

Question

I'm working on a CSS layout for my page, I'm just having a problem. On first page view the navbar loads all out of whack, but after page refresh, everything looks fine, here's an example:
Before:
After:
I'm not sure why it would be doing this I'm kind of new to CSS, any information would be great thanks!
Here's the CSS:
html, body {
margin: 0px;
}
.navbar-fixed {
background: -webkit-linear-gradient(top, #fff 0, #eee 85%, #ddd 100%);
border-top: 1px solid black;
border-bottom: 1px solid black;
border-radius: 3px;
box-shadow: 1px 1px 4px #e5e5e5;
position: fixed;
right: 0;
left: 0;
top: 0;
width: 100%;
}
.navbar-fixed ul {
display: inline-block;
margin: 0;
padding: 0;
}
.navbar-fixed ul li {
display: inline-block;
}
.navbar-fixed .logo a {
line-height: 50px;
padding: 0;
font-size: 32px;
letter-spacing: -3px;
transition: 0.3s;
font-weight: bold;
color: orange;
text-decoration: none;
text-shadow: 2px 2px 3px black;
margin: 0 2em 0 1em;
}
.navbar-fixed .logo a:hover {
text-shadow: 1px 1px 7px black;
color: white;
background: transparent;
}
.navbar-fixed ul.nav {
float: right;
}
.navbar-fixed ul.nav li a {
padding: 1em;
display: block;
color: #00AAEE;
cursor: pointer;
border: solid 0 1px 0 1px transparent;
transition: 0.5s;
text-decoration: none;
}
.navbar-fixed ul li a:hover, ul li.active a {
background-color: darkgrey;
border-color: #ccc;
color: white;
}
.container {
margin: 0 auto;
width: 70%;
}
.newswindow {
padding: 1em;
color: #fff;
background-color: rgba(0, 0, 0, 0.75);
position: absolute;
bottom: 0;
left: 0;
}
.newswindow h2 {
font-size: 42px;
border-bottom: 1px solid white;
letter-spacing: -2px;
}
.newswindow p {
font-size: 18px;
}

Answer 1

Some browser specific default styles could be interfering your defined styles. (Inherited styles, default more specifically defined styles for certain elements...)
For homogenous behavior in all browsers, use a CSS reset and define all the needed styles properly, not depending on browsers' defaults.
Here is a good source:
http://meyerweb.com/eric/tools/css/reset/