* {
  margin: 0;
  padding: 0;
  text-decoration: none;
}
body {
  
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
}
.mainImg {
  max-height: 100vh;
  max-width: 50vw;
}
.control_back,
.control_prev,
.control_prev2,
.control_next,
.control_next2,
.control_bottom {
  position: absolute;
  border: none;
  background: none;
  outline: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.control_next {
  left: 150px;
}
.control_next2 {
  left: 20px;
}
.control_prev {
  right: 150px;
}
.control_prev2 {
  right: 20px;
}
.control_back {
  top: 5%;
  left: 5%;
  font-size: 20px;
}
.control_bottom {
  bottom: 5%;
  right: 5%;
}
.control_img {
  max-width: 100px;
  max-height: 100px;
  height: 100%;
  width: 100%;
  margin-bottom: 5px;
}