.custom-button a {
    border-radius: 5px;
    font-size: 18px;
    padding: 12px 20px;
    background-color: #0A523A;
    color: #fff;
    border: 1px solid #083d2e;
}
.custom-button a:hover {
    background-color: #306F5A;
}
@media only screen and (min-width: 992px) {
nav li {
    margin-left: 15px;
    padding-right: 15px;
}
}