.btnCust {
    /* position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    background-color: #555;
    color: white;
    font-size: 40px;
  padding: 16px 30px 19px 35px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    text-align: center; */
    position: absolute;
    left: 0px;
    top: 0px;
    z-index: 1;
    opacity: 0.85;
    cursor: pointer;
}