.bg-dark {
    background-color: #343a40 !important;
}

.nav {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
    text-align:center;
}

.nav-link {
    display: block;
    padding: .5rem 1rem;
}

    .nav-link:focus, .nav-link:hover {
        text-decoration: none;
    }

    .nav-link.disabled {
        color: #6c757d;
    }

.nav-tabs {
    border-bottom: 1px solid #dee2e6;
}

    .nav-tabs .nav-item {
        margin-bottom: -1px;
    }

    .nav-tabs .nav-link {
        border: 1px solid transparent;
        border-top-left-radius: .25rem;
        border-top-right-radius: .25rem;
    }

        .nav-tabs .nav-link:focus, .nav-tabs .nav-link:hover {
            border-color: #e9ecef #e9ecef #dee2e6;
        }

        .nav-tabs .nav-link.disabled {
            color: #6c757d;
            background-color: transparent;
            border-color: transparent;
        }

        .nav-tabs .nav-item.show .nav-link, .nav-tabs .nav-link.active {
            color: #495057;
            background-color: #fff;
            border-color: #dee2e6 #dee2e6 #fff;
        }

    .nav-tabs .dropdown-menu {
        margin-top: -1px;
        border-top-left-radius: 0;
        border-top-right-radius: 0;
    }

.nav-pills .nav-link {
    border-radius: .25rem;
}

    .nav-pills .nav-link.active, .nav-pills .show > .nav-link {
        color: #fff;
        background-color: #007bff;
    }

.nav-fill .nav-item {
    -ms-flex: 1 1 auto;
    flex: 1 1 auto;
    text-align: center;
}

.nav-justified .nav-item {
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1;
    text-align: center;
}

.tab-content > .tab-pane {
    display: none;
}

.tab-content > .active {
    display: block;
}

.navbar {
    position: relative;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: .5rem 1rem;
    
}

    .navbar > .container, .navbar > .container-fluid {
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        -ms-flex-align: center;
        align-items: center;
        -ms-flex-pack: justify;
        justify-content: space-between;
    }

.navbar-brand {
    display: inline-block;
    padding-top: .3125rem;
    padding-bottom: .3125rem;
    margin-right: 1rem;
    font-size: 1.25rem;
    line-height: inherit;
    white-space: nowrap;
}

    .navbar-brand:focus, .navbar-brand:hover {
        text-decoration: none;
    }

.navbar-nav {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
    width:100%;
}

    .navbar-nav .nav-link {
        padding-right: 0;
        padding-left: 0;
    }

    .navbar-nav .dropdown-menu {
        position: static;
        float: none;
    }

.navbar-text {
    display: inline-block;
    padding-top: .5rem;
    padding-bottom: .5rem;
}

.navbar-collapse {
    -ms-flex-preferred-size: 100%;
    flex-basis: 100%;
    -ms-flex-positive: 1;
    flex-grow: 1;
    -ms-flex-align: center;
    align-items: center;
}

.navbar-toggler {
    padding: .25rem .75rem;
    font-size: 1.25rem;
    line-height: 1;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: .25rem;
}

    .navbar-toggler:focus, .navbar-toggler:hover {
        text-decoration: none;
    }

    .navbar-toggler:not(:disabled):not(.disabled) {
        cursor: pointer;
    }

.navbar-toggler-icon {
    display: inline-block;
    width: 1.5em;
    height: 1.5em;
    vertical-align: middle;
    content: "";
    background: no-repeat center center;
    background-size: 100% 100%;
}

@media (max-width:575.98px) {
    .navbar-expand-sm > .container, .navbar-expand-sm > .container-fluid {
        padding-right: 0;
        padding-left: 0;
    }
}

@media (min-width:576px) {
    .navbar-expand-sm {
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        -ms-flex-pack: start;
        justify-content: flex-start;
    }

        .navbar-expand-sm .navbar-nav {
            -ms-flex-direction: row;
            flex-direction: row;
        }

            .navbar-expand-sm .navbar-nav .dropdown-menu {
                position: absolute;
            }

            .navbar-expand-sm .navbar-nav .nav-link {
                padding-right: .5rem;
                padding-left: .5rem;
            }

        .navbar-expand-sm > .container, .navbar-expand-sm > .container-fluid {
            -ms-flex-wrap: nowrap;
            flex-wrap: nowrap;
        }

        .navbar-expand-sm .navbar-collapse {
            display: -ms-flexbox !important;
            display: flex !important;
            -ms-flex-preferred-size: auto;
            flex-basis: auto;
        }

        .navbar-expand-sm .navbar-toggler {
            display: none;
        }
}

@media (max-width:767.98px) {
    .navbar-expand-md > .container, .navbar-expand-md > .container-fluid {
        padding-right: 0;
        padding-left: 0;

    }
}

@media (min-width:768px) {
    .navbar-expand-md {
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        -ms-flex-pack: start;
        justify-content: flex-start;
    }

        .navbar-expand-md .navbar-nav {
            -ms-flex-direction: row;
            flex-direction: row;
        }

            .navbar-expand-md .navbar-nav .dropdown-menu {
                position: absolute;
            }

            .navbar-expand-md .navbar-nav .nav-link {
                padding-right: .5rem;
                padding-left: .5rem;
            }

        .navbar-expand-md > .container, .navbar-expand-md > .container-fluid {
            -ms-flex-wrap: nowrap;
            flex-wrap: nowrap;
        }

        .navbar-expand-md .navbar-collapse {
            display: -ms-flexbox !important;
            display: flex !important;
            -ms-flex-preferred-size: auto;
            flex-basis: auto;
        }

        .navbar-expand-md .navbar-toggler {
            display: none;
        }
}

@media (max-width:991.98px) {
    .navbar-expand-lg > .container, .navbar-expand-lg > .container-fluid {
        padding-right: 0;
        padding-left: 0;
    }
}

@media (min-width:992px) {
    .navbar-expand-lg {
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        -ms-flex-pack: start;
        justify-content: flex-start;
    }

        .navbar-expand-lg .navbar-nav {
            -ms-flex-direction: row;
            flex-direction: row;
        }

            .navbar-expand-lg .navbar-nav .dropdown-menu {
                position: absolute;
            }

            .navbar-expand-lg .navbar-nav .nav-link {
                padding-right: .5rem;
                padding-left: .5rem;
            }

        .navbar-expand-lg > .container, .navbar-expand-lg > .container-fluid {
            -ms-flex-wrap: nowrap;
            flex-wrap: nowrap;
        }

        .navbar-expand-lg .navbar-collapse {
            display: -ms-flexbox !important;
            display: flex !important;
            -ms-flex-preferred-size: auto;
            flex-basis: auto;
        }

        .navbar-expand-lg .navbar-toggler {
            display: none;
        }
}

@media (max-width:1199.98px) {
    .navbar-expand-xl > .container, .navbar-expand-xl > .container-fluid {
        padding-right: 0;
        padding-left: 0;
    }
}

@media (min-width:1200px) {
    .navbar-expand-xl {
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        -ms-flex-pack: start;
        justify-content: flex-start;
    }

        .navbar-expand-xl .navbar-nav {
            -ms-flex-direction: row;
            flex-direction: row;
        }

            .navbar-expand-xl .navbar-nav .dropdown-menu {
                position: absolute;
            }

            .navbar-expand-xl .navbar-nav .nav-link {
                padding-right: .5rem;
                padding-left: .5rem;
            }

        .navbar-expand-xl > .container, .navbar-expand-xl > .container-fluid {
            -ms-flex-wrap: nowrap;
            flex-wrap: nowrap;
        }

        .navbar-expand-xl .navbar-collapse {
            display: -ms-flexbox !important;
            display: flex !important;
            -ms-flex-preferred-size: auto;
            flex-basis: auto;
        }

        .navbar-expand-xl .navbar-toggler {
            display: none;
        }
}　

.navbar-expand {
    -ms-flex-flow: row nowrap;
    flex-flow: row nowrap;
    -ms-flex-pack: start;
    justify-content: flex-start;
}

    .navbar-expand > .container, .navbar-expand > .container-fluid {
        padding-right: 0;
        padding-left: 0;
    }

    .navbar-expand .navbar-nav {
        -ms-flex-direction: row;
        flex-direction: row;
    }

        .navbar-expand .navbar-nav .dropdown-menu {
            position: absolute;
        }

        .navbar-expand .navbar-nav .nav-link {
            padding-right: .5rem;
            padding-left: .5rem;
        }

    .navbar-expand > .container, .navbar-expand > .container-fluid {
        -ms-flex-wrap: nowrap;
        flex-wrap: nowrap;
    }

    .navbar-expand .navbar-collapse {
        display: -ms-flexbox !important;
        display: flex !important;
        -ms-flex-preferred-size: auto;
        flex-basis: auto;
    }

    .navbar-expand .navbar-toggler {
        display: none;
    }

.navbar-light .navbar-brand {
    color: rgba(0,0,0,.9);
}

    .navbar-light .navbar-brand:focus, .navbar-light .navbar-brand:hover {
        color: rgba(0,0,0,.9);
    }

.navbar-light .navbar-nav .nav-link {
    color: rgba(0,0,0,.5);
}

    .navbar-light .navbar-nav .nav-link:focus, .navbar-light .navbar-nav .nav-link:hover {
        color: rgba(0,0,0,.7);
    }

    .navbar-light .navbar-nav .nav-link.disabled {
        color: rgba(0,0,0,.3);
    }

    .navbar-light .navbar-nav .active > .nav-link, .navbar-light .navbar-nav .nav-link.active, .navbar-light .navbar-nav .nav-link.show, .navbar-light .navbar-nav .show > .nav-link {
        color: rgba(0,0,0,.9);
    }

.navbar-light .navbar-toggler {
    color: rgba(0,0,0,.5);
    border-color: rgba(0,0,0,.1);
}

.navbar-light .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(0, 0, 0, 0.5)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

.navbar-light .navbar-text {
    color: rgba(0,0,0,.5);
}

    .navbar-light .navbar-text a {
        color: rgba(0,0,0,.9);
    }

        .navbar-light .navbar-text a:focus, .navbar-light .navbar-text a:hover {
            color: rgba(0,0,0,.9);
        }

.navbar-dark .navbar-brand {
    color: #fff;
}

    .navbar-dark .navbar-brand:focus, .navbar-dark .navbar-brand:hover {
        color: #fff;
    }

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,.5);
}

    .navbar-dark .navbar-nav .nav-link:focus, .navbar-dark .navbar-nav .nav-link:hover {
        color: rgba(255,255,255,.75);
    }

    .navbar-dark .navbar-nav .nav-link.disabled {
        color: rgba(255,255,255,.25);
    }

    .navbar-dark .navbar-nav .active > .nav-link, .navbar-dark .navbar-nav .nav-link.active, .navbar-dark .navbar-nav .nav-link.show, .navbar-dark .navbar-nav .show > .nav-link {
        color: #fff;
    }

.navbar-dark .navbar-toggler {
    color: rgba(255,255,255,.5);
    border-color: rgba(255,255,255,.1);
}

.navbar-dark .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(255, 255, 255, 0.5)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

.navbar-dark .navbar-text {
    color: rgba(255,255,255,.5);
}

    .navbar-dark .navbar-text a {
        color: #fff;
    }

        .navbar-dark .navbar-text a:focus, .navbar-dark .navbar-text a:hover {
            color: #fff;
        }