body {
    margin: 0;
}
.containerExclusive {
    display: inline-flex;
    list-style: none;
    background-color: #EFEFEF;
    width: 100%;
    justify-content: center;
    padding-top: 1%;
    padding-bottom: 0.5%;
}

.containerExclusive li {
    margin: auto;
    list-style: none;
}

.containerExclusive ul {
    width: 100%;
    display: flex;
    position: relative;
    padding-left: 0;
}
.containerExclusive a {
    border: none;
    text-align: center;
    padding: 0;
    font-family: Avenir-Black;
    color: #FF0000;
    font-size: 110%;
    background-color: #EFEFEF;
    padding-right: 2em;
    padding-left: 2em;
    text-decoration: none;
    width: 100%;

}

.containerExclusive ul li.active-link {
    width: auto;
    align-content: center;
    border-bottom: 3px solid red;

}

@media only screen and (max-width: 767px) {
    .containerExclusive ul { width: 70%; right: 0; display: block; padding-left: 0;}
    .containerExclusive a {padding-right: 0; padding-left: 0;}
}