@media screen and (max-width: 800px) {
    /***********************
Two Column Layout
***********************/
    #primary {
        width: 50%;
        float: left;
    }
    #secondary {
        width: 40%;
        float: right;
    }
    /***********************
 3 * 5 = 15
100% - 15% = 85%
85/3 = 28.3333%
***********************/
    @media screen and (min-width: 480px) {
        /***********************
        Two Column Layout
        ***********************/
        #primary {
            width: 50%;
            float: left;
        }
        #secondary {
            width: 40%;
            float: right;
        }
        /***********************
Page: Portfolio
***********************/
        #gallery li {
            width: 28.3333%;
        }
        #gallery li:nth-child(4n) {
            clear: left;
        }
        /***********************
Page: About
***********************/
        .profile-photo {
            float: left;
            margin: 0 5% 80px 0;
        }
    }
    @media screen and (min-width: 660px) {
        /***********************
Header
***********************/
        nav {
            background: none;
            float: right;
            font-size: 1.125em;
            margin-right: 5%;
            text-align: right;
            width: 45%
        }
        #logo {
            float: left;
            margin-left: 5%;
            text-align: left;
            width: 45%;
        }
        h1 {
            font-size: 2.5em;
        }
        h2 {
            font-size: 0.825em;
            margin-bottom: 20px;
        }
        header {
            border-bottom: 5px solid #599a68;
            margin-bottom: 60px;
        }
    }