body, div, p, a, img, ul, li, span, form, input, label, select, option, button, h1, h2, h3, h4, h5, h6, header, article, section, footer, nav {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
body {
  font-size: 16px;
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
}
img {
  display: block;
  width: 100%;
}
a {
  text-decoration: none;
}
ul {
  list-style: none;
}
input, button, select {
  outline: none;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.clearfix {
  &:after {
    content: '';
    display: table;
    clear: both;
  }
}
.hidden {
  opacity: 0;
}
.hide {
  display: none;
}

body {
  min-width: 1200px;
}
@media screen and (max-width: 1200px) {
  body {
    width: 1200px;
  }
}

.wrap {
  width: 1200px;
  margin: 0 auto;
}