:root {
  --primary: #64b381;
  --primary-light: #83c99a;
  --primary-dark: #4a9a65;
  --primary-darker: #2d6a40;
  --primary-bg: #eaf7f0;
  --primary-shadow: #c2e0cd;
  --primary-rgb: 100, 179, 129;
  --primary-footer-bg: #152022;
  --header-dark-bg: linear-gradient(to right, #5ca578, #6eaa6a);
  --footer-bg: #444;
}

/*css reset*/
body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
p,
blockquote,
th,
td {
  padding: 0;
  margin: 0;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
fieldset,
img {
  border: 0;
}
address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
  font-weight: normal;
  font-style: normal;
}
ol,
ul {
  list-style: none;
}
caption,
th {
  text-align: left;
  color: #0000ee;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
  font-size: 100%;
}
s,
i,
em {
  font-style: normal;
  text-decoration: none;
}

q:before,
q:after {
  content: ”;
}
abbr,
acronym {
  border: 0;
}
a {
  text-decoration: none;
  color: #666666;
}
input,
select,
textarea {
  border: 0;
  border: none;
  outline: none;
}
img {
  border: 0;
  vertical-align: middle;
}

.fl {
  float: left;
}
.fr {
  float: right;
}
/*清除浮动*/
.clearfix:before,
.clearfix:after {
  content: "";
  display: table;
}
.clearfix:after {
  clear: both;
}
.clearfix {
  *zoom: 1; /*IE/7/6*/
}