.carousel-control-next,
.carousel-control-prev {
    filter: invert(100%);
} 
 


/*
.carousel-control-prev-icon,
.carousel-control-next-icon {
  height: 60px;
  width: 40px;
  outline: black;
  background-size: 100%, 100%;
  border-radius: 10%;
  border: 1px solid black;
  background-image: none;
}

.carousel-control-next-icon:after
{
  content: '>';
  font-size: 35px;
  color: red;
}

.carousel-control-prev-icon:after {
  content: '<';
  font-size: 35px;
  color: red;
}
*/