b,
em,
i,
span,
small,
strong,
body,
html,
h1,
h2,
h3,
h4,
h5,
h6,
dl,
dt,
dd,
iframe,
form,
ol,
ul,
li,
img,
div,
label,
p {
  margin: 0;
  padding: 0;
  font-family: 'SimHei';
}
body,
html {
  width: 100%;
  min-width: 320px;
  max-width: 640px;
  margin: 0px auto;
  word-wrap: break-word;
  -webkit-text-size-adjust: none;
  color: #333;
  position: relative;
}
html {
  height: 100%;
  background: #f2f2f2;
}
body {
  background: #fff;
}
a {
  color: #666;
  text-decoration: none;
  outline: none;
  vertical-align: bottom;
}
em,
i {
  font-style: normal;
}
h1,
h2,
h3,
h4,
h5,
h6,
strong {
  font-weight: normal;
}
button,
input,
select {
  vertical-align: middle;
  outline: 0;
  border: none;
  font-family: 'SimHei';
}
input[type=button],
input.btn {
  outline: none;
}
li {
  list-style: none;
}
img {
  border: none;
  width: 100%;
  vertical-align: bottom;
}
img,
ul,
li,
span,
input,
input,
a {
  -webkit-appearance: none;
  -o-appearance: none;
  -ms-appearance: none;
  -moz-appearance: none;
  appearance: none;
}
img,
ul,
li,
span,
button,
input,
select,
a {
  -webkit-tap-highlight-color: transparent;
  -ms-tap-highlight-color: transparent;
  -o-tap-highlight-color: transparent;
  -moz-tap-highlight-color: transparent;
  tap-highlight-color: transparent;
}
a:hover {
  text-decoration: none;
}