#slider {
    max-width: 300px;
    width: 100%;
  position: relative;
  overflow: hidden;
  margin: 20px auto 0 auto;
  border-radius: 4px;
}

#slider ul {
  position: relative;
  margin: 0;
  padding: 0;
  height: 200px;
  list-style: none;
}

#slider ul li {
  position: relative;
  display: block;
  float: left;
  margin: 0;
  padding: 0;
  width: 300px;
  height: 215px;
  /*background: #ccc;*/
  text-align: center;
}

a.control_prev, a.control_next {
  position: absolute;
  top: 35%;
  z-index: 999;
  display: block;
  padding: 4% 3%;
  width: auto;
  height: auto;
  /*background: #2a2a2a;*/
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  opacity: 0.8;
  cursor: pointer;
}

a.control_prev:hover, a.control_next:hover {
  opacity: 1;
  -webkit-transition: all 0.2s ease;
}

a.control_prev {
  border-radius: 0 2px 2px 0;
  color: red;
}

a.control_next {
  right: 0;
  border-radius: 2px 0 0 2px;
  color: red;
}
.slider_content .dashicons{
        opacity: 0;
    color: #000;
    -webkit-transition: opacity .25s ease;
    margin-left: -33%;
    margin-top: 27.5%;
    font-size: 50px;
    position: absolute;
    width: 50px;
    height: 50px;
}
.slider_content:hover .dashicons{
    opacity: 1;
}
.slider_content:hover img{
    opacity: 0.35;
}