@charset "utf-8";
* {
  padding: 0;
  margin: 0;
}
a {
  border: 0;
  text-decoration: none;
}
input {
  outline: none;
}
img,
input {
  border: 0;
  vertical-align: middle;
}
li {
  list-style: none;
}
body {
  padding: 0;
  margin: 0 auto;
  font-family: "微软雅黑";
  transition-delay: 0ms;
  transition-timing-function: linear;
  transition-duration: 260ms;
  transition-property: color, background-color, background, background-image,
    transform, rectangle;
  -moz-transition-duration: 260ms; /* Firefox 4 */
  -webkit-transition-duration: 260ms; /* Safari 和 Chrome */
  -o-transition-duration: 260ms; /* Opera */
}
.f_l {
  float: left;
}
.f_r {
  float: right;
}
.flex {
  display: flex;
}
.row {
  margin: 0;
}
.row::before,
.row::after {
  display: none;
}