body {

font-family: Arial, sans-serif;

line-height: 1.6;

margin: 0;

}

.container {

width: 80%;

margin: auto;

overflow: hidden;

}

header {

background: #333;

color: #fff;

padding-top: 30px;

min-height: 70px;

border-bottom: #77aaff 3px solid;

}

header h1 {

float: left;

margin-top: 0;

}

header nav {

float: right;

margin-top: 10px;

}

header nav ul {

margin: 0;

padding: 0;

}

header nav ul li {

display: inline;

}

header nav ul li a {

color: white;

text-decoration: none;

padding: 10px 15px;

}

section {

padding: 20px 0;

}

footer {

background: #333;

color: #fff;

text-align: center;

padding: 10px;

margin-top: 20px;

}