body {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline-block;
}

nav ul{
    list-style-type: none;
    margin: 0;
    padding: 0;
    background-color: #333;
}

nav ul li a {
    color: white;
    display: block;
    padding: 14px 16px;
    /*padding-top: 14px;
    padding-bottom: 14px;
    padding-left: 14px;
    padding-right: 16px;*/
    text-decoration: none;
    text-align: center;
}

nav ul li a:hover {
    background-color: #494848;
}

nav{
    margin-bottom: 20px;
}

body{
    background-color: #1abb7d;
}

 img{
    display: block;
    margin-left: auto;
    margin-right: auto;
}