ul {
    padding: 0;
    margin: 0;
    list-style-type: none;
    background-color: #4fb99f;
    overflow: auto;
}

ul li {
    float: left;
    border-bottom: 3px solid #4fb99f;
}

ul li a {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    color: #fff;
    font-size: 18px;
}

ul li.active {
    background-color: #068587;
    border-bottom: 3px solid #f2b134;
}

ul li:hover:not(.active) {
    background-color: #068587;
    border-bottom: 3px solid #f2b134;
}

.hamburger-btn {
    display: none;
    cursor: pointer;
    padding: 3px 10px;
    border-radius: 4px;
    /* background-color: #068587; */
    float: right;
}

.hamburger-btn .bar1, .hamburger-btn .bar2, .hamburger-btn .bar3 {
    width: 25px;
    height: 5px;
    background-color: #9b9b9b;
    margin: 4px 0px;
    transition: 0.4s;
    border-radius: 0px 20px 20px 0px;
}

.hamburger-change .bar1 {
    transform: rotate(-45deg) translate(-6px, 5px);
}

.hamburger-change .bar2 {
    /*IE8*/
    -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=0)";
    /*IE 5-7*/
    filter: alpha(opacity=0);
    /*Modern Browsers*/
    opacity: 0;
}

.hamburger-change .bar3 {
    transform: rotate(45deg) translate(-6px, -6px);
}

@media screen and (max-width: 768px) {
ul {
    display: none;
    position: absolute;
    z-index: 2;
    top: 40px;
    left: 0px;
    width: 100%;
}

ul li {
    float: none;
    border-bottom: none;
    border-left: 6px solid #4fb99f;
}

ul li.active {
    border-bottom: none;
    border-left: 6px solid #f2b134;
}

ul li:hover:not(.active) {
    border-bottom: none;
    border-left: 6px solid #f2b134;
}

.hamburger-btn {
    display: inline-block;
    }
}