.menu_list {width: 100%; height: 3.6rem; line-height: 3.6rem; font-size: 1rem; padding: 0px 20px; z-index: 10; box-shadow: 0 1px 12px 0 rgba(236, 236, 236, 0.50); position: fixed; top: 0; max-width: 750px; background-color: #fff; box-sizing: border-box; -moz-box-sizing: border-box; /* Firefox */ -webkit-box-sizing: border-box; /* Safari */ }
.menu_list img { height: 1.92rem; width: auto; margin: .83rem 0; /* width: 36.4%; */ }
.nav {
  margin-top: 3.6rem;
  width: 100%;
  height: 3.14rem;
  position: fixed;
  z-index: 99;
  background: #ffffff;
  box-sizing: border-box;
  left: 0;
  top: 0;
  border-bottom: 1px solid #F5F5F5;
}
.nav ul {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.07rem;
  box-sizing: border-box;
  font-size: 0.86rem;
  font-weight: 400;
  color: #000000;
}

.fr {
  float: right;
}