*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.page-header{
    display: flex;
    justify-content: center;
    padding: 28px 0;
    background-color: #000;
}

.logo-header, .main-banner{
    width: 100%;
    display: block;
    height: auto;
}