header {
    z-index: 1000;
    position:fixed;
    margin: 0;
    top: 0;
    left: 0;
    right: 0;
    height: 79px;
    overflow: hidden;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    padding: 5px;
    /*background-color: var(--mp-black01);*/
    color: white;
    
}
header.black {
    background-color: #434343; 
}
header.white {
    background-color: rgba(245, 245, 245, 1);
}

header .left { 
    padding-left: 26px;
    text-align: left; 
}
header .right { 
    padding-right: 26px;
    text-align: right; 
}
header .center {
    padding: 0 26px;
    text-align: center;
}

header .left .content,
header .center .content,
header .right .content {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
}
header .left .content {
    justify-content: flex-start;
}
header .center .content {
    justify-content: center;
}
header .right .content {
    justify-content: flex-end;
}

header .left .content img.logo {
    height: 30px;
}
header .left .content img.vertical_line {
    margin:0px 30px; 
}
header .left .content span.app_title {
    font-size: 20px;
    font-weight: bold;
}
header .left .content span.app_title.black {
    color: #6D6A6B;
    background-color: #f5f5f5;
}
header .left .content span.app_title.white {
    color: white;
    background-color: #2E2A2B;
}

header .center .content span.app_title {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 1px;
}
header .center .content span.app_title.black {
    color: #F33800;/*#6D6A6B;*/
    background-color: transparent;
}
header .center .content span.app_title.white {
    color: /*#DED5C9;*/ white;
    background-color: transparent;
}

header .right .content .menu_item {
    color: var(--mp-black-gray-2);
    font-size: 17px;
    padding: 0px 1rem;
    cursor: pointer;
}
header .right .content .menu_item.actiu {
    color: white;
}
header .right .content img.logo {
    height: 50px;
}

@media screen and (max-width: 680px) {
    header .center .content span.app_title {
        font-size: 1.1rem;
    }
}

@media screen and (max-width: 600px) {
    header {
        display: block;
    }
    header .left {
        margin-top: 10px;
        padding-left: 0px;
    }
    header .right {
        margin-top: -53px;
        padding-right: 0px;
    }
    header .center {
        padding-top: 10px;
    }

    header .right .content img.logo {
        height: 30px;
    }

    header .left .content img.logo {
        height: 20px;
    }

/* -- Second option --
    header {
        height: auto;
        flex-direction: column;
        padding: 15px 5px;
    }
    header .left { 
        padding-left: 0px;
        text-align: center; 
    }
    header .center {
        margin: 10px 0;
    }
    header .right { 
        padding-right: 0px;
        text-align: center; 
    }
*/  
}