Boa noite, me ajudem a encontra o erro, por favor.
HTML
<aside>
<nav>
<h1>João da Silva</h1>
<ul>
<li><a class="navegacao" href="index.html">Home</a></li>
<li><a class="navegacao" href="portfolio.html">Portfolio</a></li>
<li><a class="navegacao" href="bio.html">Sobre Mim</a></li>
<li><a class="navegacao" href="blog.html">Blog</a></li>
<li><a class="navegacao" href="contato.html">Contato</a></li>
</ul>
<div>
<ul class="icones-socias">
<li><a class="github" href="https://github.com/git-joaodasilva">
Github</a></li>
<li><a class="twitter" href="https://twitter.com/twitter-joaodasilva">
Twitter</a></li>
<li><a class="linkedin" href="https://br.linkedin.com/pub/linkedin-joao-da-silva/32/4/508">
Linkedin</a></li>
</ul>
</div>
</nav>
</aside>
CSS
body {
font-family:"Crimson Text", "Times New Roman", serif;
background-color: #F2FFFC;
font-size: 120%;
line-height: 1.5;
}
.titulo-principal {
text-align: center;
color: #FFF;
background-color: #851944;
padding: 25px;
border-bottom: 10px solid #000;
font-size: 60px;
text-transform: uppercase;
}
h2, h1 {
font-family: "Open Sans Condensed", "Arial", sans-serif;
}
p {
text-align: justify;
margin: 20px 0;
}
.link-principal{
color: #851944;
}
aside {
background-color: #3C1D3D;
color:#F2FFFC;
padding: 20px;
text-align: center;
box-sizing: border-box;
clear:right;
}
#cor-de-fundo{
background-color: #000;
color: #F2FFFC;
padding: 20px;
}
nav a {
color: #F2FFFC;
}
.navegacao {
color: inherit;
font-family: "Open Sans Condensed", sans-serif;
text-decoration: none;
text-transform: lowercase;
}
blockquote {
background-color: #D9E5E3;
margin: 20px 40px;
padding: 20px;
border: 10px solid #C2CCCA;
width: 250px;
box-sizing:border-box;
}
.divisao-principal {
width: 720px;
margin: auto;
padding: 30px 0;
}
aside h1 {
font-size: 30px;
margin-bottom: 25px;
}
h2 {
font-size: 30px;
clear: both;
}
strong {
font-weight: bold;
}
em {
font-style: italic;
}
.icones-sociais li {
display: inline-block;
}
.icones-sociais a {
width: 40px;
height: 40px;
display:inline-block;
text-indent: -99999px;
}
.github {
background-image: url(github.png);
}
.twitter {
background-image: url(twitter.png);
}
.linkedin {
background-image: url(linkedin.png);
}
article {
padding-bottom: 30px;
border-bottom: 1px solid #ccc;
margin-bottom: 20px;
}
.link-leia {
font-size: 24px;
padding: 8px;
margin: 16px;
display:block;
text-align: center;
background-color: grey;
}
cite {
font-style: italic;
float: right;
}
.fiat {
float: right;
}
.petobras {
float: left;
}
aside, img {
float:right;
width:15%;
}
main {
float: left;
width: 85%;
}
footer {
clear:both;
padding: 20px;
}