body,
dd,
div,
dl,
dt,
fieldset,
form,
h1,
h2,
h3,
h4,
h5,
h6,
img,
input,
li,
ol,
p,
table,
td,
ul {
  margin: 0;
  padding: 0
}

img {
  border: none
}

li {
  list-style: none
}

input,
select,
textarea {
  outline: none;
  border: none;
  background: none
}

textarea {
  resize: none
}

a {
  text-decoration: none
}

.clearfix:after {
  content: "";
  display: block;
  clear: both
}

.clearfix {
  zoom: 1
}

.fl {
  float: left
}

.fr {
  float: right
}

body,
html {
  height: 100%;
  overflow-x: hidden;
  font: 16px Microsoft YaHei, Hiragino Sans GB, Arial, serif;
}

#header {
  width: 100%;
  height: 150px;
  min-width: 1200px
}

div.main-content {
  width: 1200px;
  height: calc(100vh - 300px) !important;
  margin: 0 auto;
  padding: 50px 0;
  box-sizing: border-box;
}

#footer {
  height: 150px;
  box-sizing: border-box;
  border-top: 2px solid #dfdbdb;
}