.trialsmenu {
    text-align: center;
}

#navtrials {
    padding: 0;
}

#navtrials li {
    display: inline-block;
    color: black;
    z-index: 1;
    position: relative;
}

#navtrials li + li,
#navtrials:hover li:first-child {
    display: none;
    /*transition: opacity .3s ease, display .3s ease allow-discrete;*/

    color: #8dbdd8;
}

#navtrials:hover li + li {
    display: inline-block;
    color: black;
}

#navtrials li {
    margin: 30px 0 10px 0;
}

#navtrials li a,
#navtrials li:first-of-type {
    border: 3px solid black;
    border-radius: 300px;
    font-size: x-large;
    font-weight: bold;
}

#navtrials li a {
    padding: 5px 100px;
    display: block;
    background-color: white;
    color: black;
}
#navtrials li a:hover {
    padding: 5px 100px;
    display: block;
    background-color: black;
    color: white;
    transition: color 0.5s ease, background-color 0.5s ease;
}

#navtrials li:first-of-type {
    padding: 5px 200px;
    z-index: 2;
    position: relative;
}