estilo.css

* {
  padding: 0;
  margin: 0;
}

body{
  font-family: 'Trebuchet MS', Arial, sans-serif;
  font-size: 1em;
  background: #fff;
  padding: 20px;
  width: 1080px;
}

#conteudo {
  margin: 0;
}

#area-posts{
  float: left;
  width: 800px;
}

#area-menu-lateral {
  float: right;
  width: 250px;
  background: lightgray;
  padding: 10px;
}

.post {
  padding: 20px;
  margin-bottom: 20px;
  background: lightgray;
}

.post-lateral {
  font-size: 0.8em;
  border-bottom: 1px #ccc;
  margin: 10px 5px 15px 5px;; 
}

header {
  background-color: gray;
  text-align: center;
  height: 180px;
  width: 1080px;
  margin-bottom: 12px;
}

#logo {
  float: left;
  margin: 14px 0 12px 12px;
}

img {
  border: 10px solid darkred;
}

#area-logo {
  font-size: 30px;
  font-weight: bold;
  float: right;
  width: 820px;
}

#etec {
  margin-top: 30px;
  font-size: 1.4em;
}

#area-logo, #area-menu {
  padding: 10px;
}

h1 {
  color: gray; 
}

h3 {
  color:brown;
  background: white;
  text-transform: uppercase;
  padding: 10px;
  margin: 10px 0;
}

a {
  text-decoration: none;
  color: brown;
  text-transform: uppercase;
  margin-bottom: 3px;
}

a:hover {
  color: gray;
  cursor: pointer;
  text-decoration: underline;
}

ul, ol {
  padding: 15px;
}