.carousel-item img{
    height: 250px;
    width: auto;
    margin: auto; 
  }
.carousel-indicators li {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin: 10px;
  text-indent: 0;
  cursor: pointer;
  border: none;
  border-radius: 50%;
  background-color: whitesmoke;
  box-shadow: inset 1px 1px 1px 1px rgba(0,0,0,0.5);    
  }
.carousel-indicators .active {
  width: 10px;
  height: 10px;
  margin: 10px;
  background-color: red;
  }
.carousel-control-prev-icon,
.carousel-control-next-icon {
  height: 50px;
  width: 50px;
  outline: lightgray;
  background-size: 100%, 100%;
  border-radius: 50%;
  border: 2px solid rgb(20, 121, 216);
  background-image: none;
  }
.carousel-control-next-icon:after{
  content: '>';
  font-size: 25px;
  color: rgb(20, 121, 216);
  }
.carousel-control-prev-icon:after {
  content: '<';
  font-size: 25px;
  color: rgb(20, 121, 216);
  }