.top_menu {
    height: 3.5rem;
    background-color: #87ADAD;
    z-index: 2000;
}

.menu_logo {
    width: 7rem;
}

.menu {
    font-size: .85rem;
}

.menu li {
    margin-left: 1.2rem;
}

.menu a {
    color: #202924;
    text-decoration: none;
}

.menu a:hover {
    text-decoration: none;
}

.menu a:after {
    display: block;
    content: '';
    border-bottom: solid 1px #202924;
    transform: scaleX(0);
    transition: transform 500ms ease-in-out;
    transform-origin:  0% 50%;
}

.menu a:hover:after {
    transform: scaleX(1);
}

.menu a.active:after {
    transform: scaleX(1);
}
.mobile_menu {
    display: none;
    background-color: #87ADAD;
    z-index: 1000;
    opacity: 0;
    transition: opacity .5s;
}
.mobile_menu.active {
    opacity: 1;
    transition: opacity .5s;
}
.mobile_menu li a {
    color: #202924;
    text-decoration: none;
    display: inline-block;
    padding: 1rem 0;
    font-size: 1.5rem;
    text-decoration: none;
}
.mobile_menu li a.active {
    text-decoration: underline;
}
/* Burger button */
#nav_button {
    cursor: pointer;
    display: inline-block;
}

#nav_button a {
    z-index: 3000;
    display: block;
    width: 2rem;
    height: 1.7rem;
    padding-top: 0;
}

#nav_button a span {
    position: relative;
    top: .8rem;
    display: block;
    -webkit-transition-duration: 0s;
    transition-duration: 0s;
}

#nav_button a span:before,
#nav_button a span:after {
    position: absolute;
    content: '';
}

#nav_button a span,
#nav_button a span:before,
#nav_button a span:after {
    width: 2rem;
    height: 0;
    border-top: .2rem solid #202924;
    display: block;
}

#nav_button a:hover span,
#nav_button a:hover span:before,
#nav_button a:hover span:after {
    background-color: #202924;
}

#nav_button a span:before {
    margin-top: -.8rem;
}

#nav_button a span:after {
    margin-top: .45rem;
}

#nav_button a.open span {
    border-top: none;
    -webkit-transition-delay: 0.2s;
    transition-delay: 0.2s;
}

#nav_button a span:before {
    -webkit-transition-property: margin, -webkit-transform;
    transition-property: margin, transform;
    -webkit-transition-duration: 0.2s;
    transition-duration: 0.2s;
    -webkit-transition-delay: 0.2s, 0s;
    transition-delay: 0.2s, 0s;
}

#nav_button a.open span:before {
    border-top: .2rem solid #202924;
    margin-top: 0;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-transition-delay: 0s, 0.2s;
    transition-delay: 0s, 0.2s;
}

#nav_button a span:after {
    -webkit-transition-property: margin, -webkit-transform;
    transition-property: margin, transform;
    -webkit-transition-duration: 0.2s;
    transition-duration: 0.2s;
    -webkit-transition-delay: 0.2s, 0s;
    transition-delay: 0.2s, 0s;
}

#nav_button a.open span:after {
    border-top: .2rem solid #202924;
    margin-top: 0;
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
    -webkit-transition-delay: 0s, 0.2s;
    transition-delay: 0s, 0.2s;
}

/* Burger button */
@media (min-width: 768px) {}

@media (min-width: 992px) {}

@media (min-width: 1200px) {}

@media (min-width: 1400px) {}