body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
legend,
input,
textarea,
button,
p,
blockquote,
th,
td {
  margin: 0;
  padding: 0;
}

body {
  text-align: center;
 
}

li {
  list-style-type: none;
}

a{
  text-decoration: none;
  color:#000;
}

/*文本没有下滑线*/
img,
input,
button {
  border: none;
  vertical-align: middle;
}

html {
  -webkit-tap-highlight-color: transparent;
}

* {
  padding: 0;
  margin: 0;
  outline: none;
  box-sizing: border-box;
  border: none;
}
em,i{
  font-style: normal;
}