/* Small Devices */
@media only screen and (max-width: 767px) {
    
    .navbar-default{
        background-color: #fff !important;
        border-color: #e6e6e6;
    }
    
    .about-iphone img{
        width: 100%;
    }
    
    .purchase-now .col-md-3{
        text-align: center;
        padding-top: 50px;
    }
    
    
}

/* Small Devices & Tablets */
@media only screen and (max-width: 768px) {
    
    .header-iphone{
        display: none;
    }
    
    .header-text, .header-btns{
        
        text-align: center;
    }
    
    
}

/* Medium Devices & Desktop */
@media only screen and (min-width: 992px) {
    
    
}

/* Large Devices & Wide Screens */
@media only screen and (min-width: 1200px) {
    
    
}