blockquote, body, button, dd, dl, dt, fieldset, form, h1, h2, h3, h4, h5, h6, hr, input, legend, li, ol, p, pre, td, textarea, th, ul {
  margin: 0;
  padding: 0;
  list-style: none;
  box-sizing: border-box;
}
em, i {
  font-style: normal;
}
ul, ol, li {
  list-style: none;
}
img {
  border: 0;
  vertical-align: middle;
}
button {
  cursor: pointer;
}
a {
  text-decoration: none;
}
button, input {
  outline: none;
}
body,html {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  background-color: #fff;
  font-family: "Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",Arial,sans-serif;
}