html,
body,
#app,input,b {
  height: 100%;
  margin: 0;
  padding: 0;
  font-style:normal;
  outline: none;
}
p{
  margin: 0;
  padding: 0;
}



.clearfix::after {
  content: "";
  height: 0;
  line-height: 0;
  display: block;
  clear: both;
  visibility: hidden;
}
.clearfix {
  zoom: 1;
}
input,select,button{
  -webkit-appearance:none;
  appearance:none;
}