.codrops-header nav ul{
    width: 1580px;
    margin: 0 auto;
    list-style: none;
}
.codrops-header nav ul li{
    float:left;
    line-height: 36px; 
    width:140px
}
.codrops-header nav ul li a{
    font-size: 19px;
    color: #000;
    font-weight: bold;
}
.codrops-header nav ul li span{
   float: right;
}