* {
  padding: 0;
  margin: 0;
}
.tab_di {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: fixed;
  bottom: 0;
  padding: 0.1rem 0.1rem;
  width: 100%;
  z-index: 999;
  border-top: 1px #cccccc solid;
  background-color: #FFFFFF;
}
.tab_di a {
  width: 20%;
  font-size: 0.05rem;
  white-space: nowrap;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  color: #cccccc;
  text-decoration: none;
}
.tab_di a img {
  width: 0.5rem;
  height: 0.5rem;
  margin-bottom: 0.1rem;
}