.form-group {
    position: relative;
}

#toggleBtn{
    position: absolute;
    top: 74%;
    right: 15px;
    transform: translateY(-50%);
    cursor: pointer;
    color: #6e707e;
    background-color: #fff;
}

#toggleBtn1, #toggleBtn2, #toggleBtn3 {
    position: absolute;
    top: 52%;
    right: 16px;
    transform: translateY(-50%);
    cursor: pointer;
    color: #6e707e;
    background-color: #fff;
}