.phone-dropdown {
    position: relative;
}
.phone-dropdown .phone-options {
    display: none;
    position: absolute;
    width:142px;
    bottom: 100%;
    transform: translateX(-64%);
    background-color: #fff;
    padding: 10px 15px;
    list-style: none;
    border-radius: 6px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    white-space: nowrap;
    z-index: 9999;
}
.phone-dropdown .phone-options li {
    margin: 5px 0;
}
.phone-dropdown .phone-options li a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none; 
    -webkit-tap-highlight-color: transparent;
}