body{
    position: relative;
}

.icon_nav_menu_mobile{
    width: 40px;
    height: 40px;
    position: absolute;
    right: 10px;
    top: 10px;
    border: 2px solid #dbe6eb;
    border-radius: 5px;
}

.icon_nav_menu_mobile:before{
    font-family: "Font Awesome 5 Free";
    content: "\f0c9";
    display: inline-block;
    vertical-align: middle;
    position: absolute;
    font-weight: 900;
    text-align: center;
    font-size: 22px;
    top: 3px;
    left: 0;
    right: 0;
}

.menu_modile_block{
    position: absolute;
    right: 0;
    top: 90px;
    width: 100%;
    z-index: 1000;
    background: #4377bc;
    border-top: 2px solid #4377bc;
    padding-bottom: 20px;
    display: none;
}



.menu_modile_block .nav-main{
    margin: 0 !important;
    padding: 10px 20px;
}
.menu_modile_block .mainNavigationMark{
    padding: 7px 20px;
    position: relative;
    color: #fff;
    border-top: 1px solid #699bdd;
}

.menu_modile_block .mainNavigationMark:before{
    font-family: "Font Awesome 5 Free";
    content: "\f105";
    display: inline-block;
    padding-right: 3px;
    vertical-align: middle;
    position: absolute;
    top: 15px;
    font-weight: 900;
    transition: all 0.5s ease;
}

.menu_modile_block .mainNavigationMark.active:before{
    transform: rotate(90deg);
}

.menu_modile_block .mainNavigationMark a{
    color: #fff;
}

.menu_modile_block .mainNavigationMark .nav-sub{
    position: initial;
    display: none;
}

.menu_modile_block .mainNavigationMark:hover .nav-sub{
    background: none !important;
}

.menu_modile_block .mainNavigationMark .nav-sub li{
    width: initial;
    position: relative;
    padding: 10px 15px;
}


.menu_modile_block .mainNavigationMark > li{
    color: #fff;
    margin-left: 10px;
}

.menu_modile_block .mainNavigationMark .nav-sub a{
    padding-left: 20px;
}

.menu_modile_block .mainNavigationMark .nav-sub li:before{
    font-family: "Font Awesome 5 Free";
    content: "\f105";
    display: inline-block;
    padding-right: 3px;
    vertical-align: middle;
    position: absolute;
    top: 10px;
    font-weight: 900;
    color: #fff;
}

@media screen and (min-device-width: 320px) and (max-device-width: 999px) {
    #header nav{
        display: none;
    }
    #header .icon_nav_menu_mobile{
        display: block;
    }
}

@media screen and (min-device-width: 1000px){
    #header .icon_nav_menu_mobile{
        display: none;
    }
}

@media (min-width: 556px) and (max-width: 999px)  {
    .menu_modile_block {
        top: 100px;
    }
}