header {
    max-width: 1000px;
}

    header hr {
        width: 810px;
    }

.header-menu li {
    margin-right: 30px;
}

    .header-menu li a {
        font-size: 14px;
    }

.logo {
    width: 135px;
}

.header-menu li:hover .blue-arrow, .header-menu li.active .blue-arrow {
    border-left: 25px solid transparent;
    border-right: 25px solid transparent;
    border-bottom: 16px solid #007ec3;
}

.header-menu li:hover .white-arrow, .header-menu li.active .white-arrow {
    border-left: 25px solid transparent;
    border-right: 25px solid transparent;
    border-bottom: 16px solid white;
    padding-top: 1px;
    margin-left: -25px;
}