* {
    margin: 0;
    padding: 0;
}

.top_container{
    display: flex;
    background: #F5F5F5;
}

#top_img{
    width: 315px;
    height: 273px;
    margin-top: 16px;
    margin-bottom: 24px;
    margin-left: auto;
    margin-right: auto;
}

.bottom_container{
    position: absolute;
    bottom: 36px;

}

.btn_container{
    display: flex;
    justify-content: center;
    width: 100%;
}

.download_btn{
    background: #E23035;  
    background:rgba(240,181,67,1);
    border-radius:3px; 
    margin-left: 18px;
    margin-right: 18px;
    height:42px;
    text-align: center;
    line-height: 42px;
    color: white;
    width: 324px;
}

.icon_container{
    margin-left: 18px;
    margin-bottom: 19px;
    display: flex;
}

.des_container{
    margin-left: 16px;
}

.root{
    width: 360px;
    margin: 0 auto;
    background-color: #FAFBFD;
}

.qr_btn{
    border: 1px solid #D4D4D4;
    border-radius:3px; 
    margin-left: 18px;
    margin-right: 18px;
    margin-top: 8px;
    height:42px;
    color: #333333;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media only screen and (max-width: 500px){
    .root{
        width: 100%;
    }

    .download_btn{
        background: #E23035;  
        background:rgba(240,181,67,1);
        border-radius:3px; 
        margin-left: 18px;
        margin-right: 18px;
        height:42px;
        text-align: center;
        line-height: 42px;
        color: white;
    }
}