body {
            font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
        }
        header,
        main,
        footer {
            display: inline-block;
            width: 800px;
            margin-left: calc(50% - 400px);
            margin-right: calc(50% - 400px);
            margin-bottom: 30px;
            
        }

        header > img {
        float: left;
        }

        nav {
            float: right;
            margin-top: 10px;
        }

       nav > a {
        float: left;
        margin-left: 20px;
        font-size: 20px;
        line-height: 20px;
        }

        nav > a:hover {
            text-decoration: underline;
        }
        nav > a:first-child {
            background-color: red;
            margin-left: 0%;
        }

        main > div {
            width: 40%;
            float: left;
        }

       main h1 {
            margin: 0;
            font-size: 60px;
            font-weight: normal;
        }

       main h2 {

        }

        main hr {
            width: 100px;
            float: left;
            height: 4px;
            background-color: #648;
            border-radius: 2px;
            border: none;
            margin: 0;
        }

        main p {
            display: inline-block;
            color: #777;
            width: 100%;
           
        }


        main a{
            padding: 10px;
            padding-left: 30px;
            padding-right: 30px;
            border-radius: 19px;
            text-decoration: none;
            background-color: #648;
            font-size: 20px;
            line-height: 20px;
            color: #fff;

 }
         main > img {
            width: 55%;
            float: right;
            transition: all 1s;
 }
    main > img:hover {
        transform: rotate(70deg);
       
        
    }

 footer div {
     float: left;
 }

 footer div {
     float: left;
     text-decoration: none;
     font-size: 20px;
     color: #aaa;
 }

 footer div > a {
    float: left;
    text-decoration: none;
    font-size: 20px;
    color: #aaa;
}

footer div > a + a {
    margin-left: 10px;
}

footer div > a:hoover {
    color #648

}

 footer p {
    float:right;
    margin: 0;
}