portfolio.css

body{
    margin: 0px;
}

header{
    background:  #145;  
    color: #fff;
    padding:  15px 15px 0 15px;
}

header h1 {
    margin: 0px;
    display: inline;
}

nav ul {
    display: inline;
    padding: 0 0 0 15px;
    margin: 0px;
}


nav ul li{
    background: #fff;
    color: #fff;
    list-style-type: none;
    display: inline;
    padding: 5px 10px;
    border-radius: 2px;
}

nav ul li a {
    color: #000;
}

.row {
    
}

.row:after {
    clear:both;
}

.col {
    float: left;
    background:  #ff4000;
    margin:  .5%;
    width:  31%;
    border-radius: 2px;
    padding: 10px .5%;
}