#model-selector {
    position: fixed;
    top: 5px;
    right: 5px;
    z-index: 10000;
    padding: 10px 20px;
    font-size: 16px;
    /* transform: translateY(-50%); */
    cursor: pointer;
    min-width: 150px;
    background: rgba(255,255,255,0.9);
    border: 1px solid #ccc;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}