#rolling_container
{   position: relative;
  overflow: hidden;
  float: right;
  top: 100px;
  width: 600px; height: 300px; border: 3px solid #333;
}

#textblock{
  position: absolute;
  left: 95px;
  top: 110px;
  height: 200px;
  width: 400px;
  text-align:center;
  font-size: 40px;
}

#rolling_container img{
  opacity: 0.5;
}

#list
{   position: absolute;
  z-index: 1;
  width: 4200px;
  height: 400px;
}
#list img
{
  float: left;
  width: 600px;
}
#buttons
{
  position: absolute;
  z-index: 2;
  bottom: 20px;
  left: 250px;
  width: 100px;
  height: 10px;
}
#buttons span
{float: left;
  width: 10px;
  height: 10px;
  margin-right: 5px;

  cursor: pointer;
  border: 1px solid #fff;
  border-radius: 50%;
  background: #333;
}
#buttons .on
{
  background: orangered;
}
.arrow
{font-size: 36px;
  font-weight: bold;
  line-height: 39px;
  position: absolute;
  z-index: 2;
  top: 180px;
  display: none;
  width: 40px;
  height: 40px;

  cursor: pointer;
  text-align: center;
  color: #fff;
  background-color: RGBA(0,0,0,.3);
}
.arrow:hover
{
  background-color: RGBA(0,0,0,.7);
}
#container:hover .arrow
{
  display: block;
}
#prev
{
  left: 20px;
}
#next
{
  right: 20px;
}