.y_list {
  width: 100%;
  margin: 0 auto;
  position: relative;
  text-align: center;
}
.rlist {
  position: relative;
  margin: 10px;
  width: 180px;
  display: inline-block;
}
.rlist img {
  margin: 0;
  width: 180px;
  height: 108px;
}
.rlist img:hover {
  background-color: #000;
  -webkit-transition: 0.5s;
  -moz-transition: 0.5s;
  -ms-transition: 0.5s;
  -o-transition: 0.5s;
  transition: 0.5s;
  opacity: 0.5;
  filter: alpha(opacity=50);
  -moz-opacity: 0.5;
  cursor: pointer;
}

.rlist_title {
  margin: 0;
  height: 2rem;
  line-height: 2rem;
  font-size: 1.5rem;
  text-align: left;
  word-wrap: break-word;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  cursor: pointer;
}
@media screen and (max-width: 560px) {
  .rlist {
    width: 300px;
  }
  .rlist img {
    width: 300px;
    height: 180px;
  }

}