/* dung cho news*/
.rslides {
  position: relative;
  list-style: none;
  overflow: hidden;
  max-width: 100%;
  padding: 0;
  margin: 0 auto;
  }

.rslides li {
  -webkit-backface-visibility: hidden;
  position: absolute;
  display: none;
  width: 100%;
  left: 0;
  top: 0;
  }

.rslides li:first-child {
  position: relative;
  display: block;
  float: left;
  }

.rslides img {
  display: block;
  height: auto;
  float: left;
  width: 100%;
  border: 0;
  }
  
/* hieu ung bong mo xung quanh*/
#polaroid { 
  width: 100%;
  background-color: white;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
  border-radius: 8px;
}

  
.callbacks_container {
  margin-bottom: 20px;
  position: relative;
  float: left;
  width: 100%;
  }

.callbacks {
  position: relative;
  list-style: none;
  overflow: hidden;
  width: 100%;
  padding: 0;
  margin: auto;
  }

.callbacks li {
  position: absolute;
  width: 100%;
  left: 0;
  top: 0;
  }

.callbacks img {
  display: block;
  position: relative;
  z-index: 1;
  height: auto;
  width: 100%;
  border: 0;
  border-radius: 8px;
  }

.callbacks .caption {
  display: block;
  position: absolute;
  z-index: 2;
  font-size: 16px;
  text-shadow: 1px 1px 1px #000;
  color: #fff;
  /*background: #000;
  background: rgba(0,0,0, .8);*/
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 10px;
  margin: 0;
  max-width: none;
  }
  
.callbacks_nav {
  position: absolute;
  -webkit-tap-highlight-color: rgba(0,0,0,0);
  top: 55%;
  left: 3%; /*vi tri prev full*/
  opacity: 0.7;
  z-index: 3;
  text-indent: -9999px;
  overflow: hidden;
  text-decoration: none;
  height: 30px;
  width: 31px;
  background: transparent url("arrows.png") no-repeat left top;
  margin-top: -45px;
  }
  
.callbacks_nav:hover {
  opacity: 1.0;
  }

.callbacks_nav:active {
  opacity: 1.0;
  }

.callbacks_nav.next {
  left: auto;
  background-position: right top;
  right: 3%; /*vi tri next full*/
  }