.link_box{
    display: block;
    margin: -475px auto 380px auto;
    padding: 0;
    text-align: center;
}




.download-btn {
    display: block;
    width: 560px;
    padding: 0;
    text-align: center;
    background: transparent;
    border: 0;
    margin: 0 auto;
    height: 106px;
    border-radius: 0;
    cursor: pointer;
    position: relative;
}

@media screen and (max-width: 800px) {
    
    .link_box{
        display: block;
        margin: -95% auto 55% auto;
        padding: 0;
        text-align: center;
    }
    .download-btn {
        width: 100%;
        height: 30vw;
        position: relative;
    }

}