.Green_Hover_Btn {
    position: relative;
    border: none;
    background: #A3C526;
    border-radius: 6px;
    color: #fff;
    padding: 5px 16px;
    overflow: hidden;
    z-index: 1;
}

/* sliding layer */
.Green_Hover_Btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: #09558F;
    transition: all 0.3s ease;
    z-index: -1;
}

/* hover effect */
.Green_Hover_Btn:hover::before {
    left: 0;
}