*{
  margin: 0;
  padding: 0;
}
html,body{
  width: 100%;
  height: 100%;
  overflow: hidden;
}
#app{
  padding:50px 20px 0 20px;

  height:100%;
}
.bg {
    background-color: #0077ff;
    background: url(../img/indexBg.png) no-repeat 100% 100%;
    background-size: cover;
}
.form{
  margin-top:50px;
}
[margin-top-10]{
  margin-top:10px;
}
.title{
  margin-top:10px;
  color:#fff;
  font-size:20px;
  text-align:center;
  height:80px;
  width:100%;
}
.title img{
  height:80px;
}