#main-header img{
    width: 100%;
    height: 100%;
}

.bg-black{
    color: white;
    background: black;
}

#main-header .port-item{
    width: 30%;

}

#main-header .port-item:hover{
    opacity: 0.8;
    cursor: pointer;
}

@media(min-width: 1199px){
    .port-item{
        padding: 3em !important;
    }
}