body {
    background-color:#fff;
}

#maincontentbody {
    padding-top:10px;background-color:#fff;
}
#divcontentquen {
    max-width:800px;margin:auto;text-align:center; padding-top:50px; min-height:400px;
}
#txtEmailSend {
    width:400px; padding:10px; box-shadow:0 0 2px rgba(0, 0, 0, 0.26); border:none;
}
#btntieptheo {
    width:100px; text-align:center; margin:auto; border-radius:20px; padding:10px 12px; background-color:#0f81ad; color:#fff;
}
#divthongbao {
    max-width:800px; margin:auto; text-align:center; font-size:14px; padding:100px 0;
}