body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: #333;
    color: #fff;
    text-align: left;
    padding: 1em;
}

nav {
    background-color: red;
    padding: 0.5em;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
}

nav a {
    text-decoration: none;
    color: #fff;
    padding: 0.5em 1em;
}

section {
    padding: 1em;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: left;
    padding: 1em;
    bottom: 0;
    width: 100%;
}
header img{
    height: 50px;
}
ul li{
      display:inline;
}
h2{
    color: red;
}
section img{
    width: 100%;
    height: 700px;
}