.core-slider {
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  color: #fff;
}

.core-slider_viewport {
  overflow: hidden;
  position: relative;
}
.demo-1{
    margin: 105px 0 0 0px;
}
.core-slider_list {
  -webkit-transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
  transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
}

.core-slider_item {
  float: left;
}

.core-slider_item img {
  display: block;
  max-width: 100%;
  height: auto;
}

.core-slider_nav.is-disabled {
  display: none;
}

.core-slider_control-nav {
  position: absolute;
  z-index: 999;
  right: 0;
  bottom: 30px;
  left: 0;
  text-align: center;
}

.core-slider_control-nav-item {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin: 0 10px;
  cursor: pointer;
  -webkit-transition: all .5s linear;
  transition: all .5s linear;
  border-radius: 50%;
  background: #fff;
}

.core-slider_control-nav-item:hover {
  opacity: .3;
}

.core-slider_control-nav-item.is-active {
  cursor: default;
  opacity: .3;
}

.core-slider_arrow {
  position: absolute;
  z-index: 999;
  top: 50%;
  cursor: pointer;
  -webkit-transform: translate(0, -50%);
  -ms-transform: translate(0, -50%);
  transform: translate(0, -50%);
}

.core-slider_arrow.is-disabled {
  cursor: default;
  opacity: .5;
}

.core-slider_arrow:hover {
  opacity: .5;
}
@media (max-width: 550px){
.demo-1 {
    margin: 60px 0 0 0px;
}
.core-slider_item img {
   height: 150px;
}
	.core-slider_control-nav{
	bottom: 0;	
	}
}