* {
  box-sizing: border-box;
}

body,
ol,
ul,
h1,
h2,
h3,
h4,
h5,
h6,
p,
th,
td,
dl,
dd,
form,
fieldset,
legend,
input,
textarea,
select {
  margin: 0;
  padding: 0;
}

body {
  font-size: 12px;
  background: #fff;
  -webkit-text-size-adjust: 100%;
}

button {
  margin: 0;
  padding: 0;
  border: none;
  outline: none;
  cursor: pointer;
}

i {
  font-style: normal;
}

b {
  font-weight: 400;
}

s {
  text-decoration: none;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: none;
}

em {
  font-style: normal
}

li {
  list-style: none
}

img {
  border: 0;
  vertical-align: middle
}

table {
  border-collapse: collapse;
  border-spacing: 0
}

p {
  word-wrap: break-word
}

input {
  border: none;
  outline: none;
  -webkit-appearance: none;
}

input[type="button"],
input[type="submit"],
input[type="reset"] {
  -webkit-appearance: none;
}

input {
  -webkit-appearance: none;
  /*清除ios默认圆角*/
  border-radius: 0;
}

textarea {
  -webkit-appearance: none;
}

/* 清除浮动 */
.clearfix:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}

.clearfix {
  /* 触发 hasLayout */
  zoom: 1;
}

.fl {
  float: left;
}

.fr {
  float: right;
}