.tns-nav {
  text-align: center;
  margin: 10px 0;
}
.tns-nav > [aria-controls] {
    width: 15px;
    height: 15px;
    padding: 0;
    margin: 0 5px;
    border-radius: 50%;
    border: 3px solid #1f90e9;
    background-color: transparent;
}
.tns-nav-active {
    background-color: #1f90e9 !important;
}