* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  height: 100vh;
  overflow: hidden;
}
.intro {
  margin: 1%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  text-align: center;
  font-size: 2rem;
}
.container {
  margin: 2%;
  width: 96%;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
a {
  text-decoration: none;
  font-size: 1.25rem;
  color: gray;
  cursor: pointer;
}
a:hover {
  color: orangered;
}
.brain,
.heart {
  text-align: center;
}
.brain {
  background-color: rgb(249, 239, 241);
  padding-left: 2px;
  padding-right: 2px;
}
.heart {
  background-color: rgb(248, 225, 228);
  padding-left: 2px;
  padding-right: 2px;
}
.lungs {
  background-color: rgb(244, 206, 212);
  padding-left: 2px;
  padding-right: 2px;
  text-align: center;
}
.kidney {
  background-color: rgb(245, 188, 197);
  padding-left: 2px;
  padding-right: 2px;
  text-align: center;
}
.liver {
  background-color: rgb(251, 175, 187);
  padding-left: 2px;
  padding-right: 2px;
  text-align: center;
}
.imgBrain:hover {
  transform: translateX(250px) translateY(100px) scale(3);
  padding: 30px;
  background-color: white;
}
.imgHeart:hover {
  transform: translateX(250px) translateY(100px) scale(3);
  padding: 30px;
  background-color: white;
}
.imgLungs:hover {
  transform: translateX(0px) translateY(0px) scale(3);
  padding: 30px;
  background-color: white;
}
.imgKidney:hover {
  transform: translateX(-200px) translateY(0px) scale(3);
  padding: 30px;
  background-color: white;
}
.imgLiver:hover {
  transform: translateX(-300px) translateY(0px) scale(3);
  padding: 30px;
  background-color: white;
}

#back {
  position: absolute;
  left: 38%;
  top: 94%;
  color: orangered;
}

.backA {
  color: orangered;
  margin-right: 25px;
  font-size: 2rem;
  font-weight: 600;
}
#back .backA:hover {
  color: dodgerblue;
}