.content-area {
    margin: 0 auto;
}

.app-top {
    height: 50px;
}

.app-logo {
    width: 40px;
    height: 40px;
    position: absolute;
    top: 50%;
    margin-top: -20px;
    margin-left: 20px;
}

.app-title {
    margin-left: 100px;
    height: 70px;
    line-height: 70px;
    position: absolute;
    top: 50%;
    margin-top: -35px;
}

.android-download {
    margin-bottom: 40px;
    height: 70px;
    line-height: 70px;
    width: 300px;
    color: #fff;
    background-color: rgb(80, 200, 60);
    border-radius: 5px;
    position: relative;
}

.ios-download {
    margin-bottom: 45px;
    height: 70px;
    line-height: 70px;
    width: 300px;
    color: #fff;
    background-color: rgb(30, 180, 246);
    border-radius: 5px;
    position: relative;
}

.app-title2 {
    margin-left: 80px;
    height: 70px;
    line-height: 70px;
    position: absolute;
    top: 50%;
    margin-top: -35px;
}



.desktop-top {
    height: 88px;
}

.desktop-logo {
    width: 52px;
    height: 52px;
    position: absolute;
    top: 50%;
    margin-top: -26px;
    margin-left: 42px;
}

.desktop-title {
    margin-left: 160px;
    height: 90px;
    line-height: 90px;
    font-size: 40px;
    position: absolute;
    top: 50%;
    margin-top: -45px;
}

.windows-download {
    margin-bottom: 50px;
    height: 90px;
    line-height: 90px;
    width: 400px;
    color: #fff;
    background-color: rgb(140, 190, 10);
    border-radius: 5px;
    position: relative;
}

.macos-download {
    margin-bottom: 50px;
    height: 90px;
    line-height: 90px;
    width: 400px;
    color: #fff;
    background-color: rgb(121, 178, 240);
    border-radius: 5px;
    position: relative;
}