body {
    margin: 0;
}

.container_img {
    width: 100%;
    border: 0;
    margin: 0;
    padding: 0;
    vertical-align: bottom;
}

.input-div {
    width: 100%;
    margin: auto;
    border: 0;
    padding: 0;
    margin-top: -15rem;
    text-align: center;
}

.input-andord {
    background-image: url("../images/andord.png?v=1.1");
    background-size: 100% 100%;
    width: 12.0rem;
    height: 4.0rem;
    margin: auto;
    background-color: transparent;
    border: 0;
}

.input-ios {
    background-image: url("../images/ios.png?v=1.1");
    background-size: 100% 100%;
    width: 12.0rem;
    height: 4.0rem;
    margin: 0.5rem auto;
    background-color: transparent;
    border: 0;
}

.wechat_tip {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: center;
    justify-content: center;
    background: #ffffff;
    color: rgb(72 72 72);
    font-size: 14px;
    font-weight: 500;
    width: 150px;
    height: 60px;
    border-radius: 10px;
    top: 20px;
    text-align: center;
}

.wechat_tip>i {
    top: -10px;
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 12px solid #ffffff;
}

.wechat_tip,
.wechat_tip>i {
    position: absolute;
    right: 10px;
}


.container_install_guide {
    width: 100%;
}

.install_guide_bgimg {
    width: 100%;
}

.install_guide_install_div {
    width: 100%;
    position: fixed;
    bottom: 0px;
    left: 0px;
}

.install_guide_input_button {
    width: 100%;
    height: 50px;
    background-image: url("../images/install_guide_install_bnt.jpg");
    background-size: 100% 100%;
}