body {
    max-width: 1000px;
    margin: auto;
    font-family: Helvetica, sans-serif;
    font-size: 20px;
    padding: 0px 0px 0px 0px;
}

h1 {
    color: limegreen;
    border-bottom: 1px solid lightgrey;
    padding: 0px 20px 0px 20px;
}

h2 {
    color: limegreen;
    margin-bottom: 5px;
    padding: 0px 20px 0px 20px;
}

p {
    padding: 0px 20px 0px 20px;
}

a {
    text-decoration: none;
}

ul.menu {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: slategrey;
}

ul.menu li {
    float: left;
}

ul.menu li a {
    display: block;
    padding: 14px 16px;
    color: white;
}

ul.menu li a.active {
    background-color:limegreen;
}

ul.menu li a:hover:not(.active) {
    background-color: darkslategrey;
}

ul.social {
    list-style-type: none;
    padding: 0;
    text-align: center;
}

ul.social li {
    display: inline;
}

ul.social li a {
    margin: 10px;
    font-size: 60px;
    color: slategrey;
    /*width: 100px;*/
}

ul.social li a:hover {
    color: darkslategrey;
}

table {
    border-spacing: 20px;
}

img {
    margin: 20px 10px 20px 10px
}

.picture {
    max-width: 400px;
    margin: auto;
}

@media (min-width: 600px)
{
    .column {
            float: right;
    }

    .content {
            width: 70%;
    }

    .picture {
        width: 30%;
    }
}

.clearfix::after {
    content: "";
    clear: both;
    display: table;
}