body, h1, h2, h3, h4, h5, h6, div, hr, p, blockquote, dl, dt, dd, ul, ol, li, pre, form, fieldset, legend, button, input, textarea, th, td {
  margin: 0;
  padding: 0;
}
body, button, input, select, textarea {
  font-size: 12px;
  font-family: arial, microsoft yahei, sans-serif;
}
body {
  margin: 0 auto;
}
h1, h2, h3, h4, h5, h6 {
  font-size: 100%
}
address, cite, dfn, em, var {
  font-style: normal
}
code, kbd, pre, samp {
  font-family: courier new, courier, monospace
}
small {
  font-size: 12px
}
ul, ol, li, dl, dt, dd {
  list-style: none
}
sup {
  vertical-align: text-top
}
sub {
  vertical-align: text-bottom
}
legend {
  color: #000
}
fieldset, img {
  border: 0
}
button, input, select, textarea {
  font: 12px/1.5 tahoma, arial, sans-serif;
  vertical-align: middle;
  cursor: pointer
}
table {
  border-collapse: collapse;
  border-spacing: 0
}
.clear {
  clear: both;
}
/*title*/
h1 {
  font-size: 50px;
}
h2 {
  font-size: 40px;
}
h3 {
  font-size: 30px;
}
h4 {
  font-size: 14px;
}
h5 {
  font-size: 12px;
}
h6 {
  font-size: 9px;
}
a {
  text-decoration: none;
  color: #666;
}
/* 公共样式 */
.left {
  float: left;
}
.right {
  float: right;
}
.left {
  float: left;
}
.hidden {
  display: none;
}
.of {
  overflow: hidden;
}
.l1 {
  margin-left: 1px;
}
.l2 {
  margin-left: 2px;
}
.l3 {
  margin-left: 3px;
}
.l4 {
  margin-left: 4px;
}
.l5 {
  margin-left: 5px;
}
.l6 {
  margin-left: 6px;
}
.l7 {
  margin-left: 7px;
}
.l8 {
  margin-left: 8px;
}
.l9 {
  margin-left: 9px;
}
.l10 {
  margin-left: 10px;
}
.l15 {
  margin-left: 15px;
}
.l20 {
  margin-left: 20px;
}
.l25 {
  margin-left: 25px;
}
.l30 {
  margin-left: 31px;
}
.t1 {
  margin-top: 1px;
}
.t2 {
  margin-top: 2px;
}
.t3 {
  margin-top: 3px;
}
.t4 {
  margin-top: 4px;
}
.t5 {
  margin-top: 5px;
}
.t6 {
  margin-top: 6px;
}
.t7 {
  margin-top: 7px;
}
.t8 {
  margin-top: 8px;
}
.t9 {
  margin-top: 9px;
}
.t10 {
  margin-top: 10px;
}
.t15 {
  margin-top: 15px;
}
.t18 {
  margin-top: 17px;
}
.t20 {
  margin-top: 20px;
}
.t30 {
  margin-top: 30px;
}
.t25 {
  margin-top: 20px;
}
.r1 {
  margin-right: 1px;
}
.r5 {
  margin-right: 5px;
}
.r10 {
  margin-right: 10px;
}
.r15 {
  margin-right: 15px;
}
.r20 {
  margin-right: 20px;
}
.r30 {
  margin-right: 30px;
}
.b5 {
  margin-bottom: 5px;
}
.b10 {
  margin-bottom: 10px;
}
.b15 {
  margin-bottom: 15px;
}
.b20 {
  margin-bottom: 20px;
}