.indexbackground{
  position: absolute;
  top: 3vw;
  left: -35vw;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.85;
}

.diffb{
  display: flex;
  justify-content: center; 
  gap: 20vw;  
  margin-top: 4vw;
}

.diffpic{
  display: flex;
  margin: auto;
  justify-content: center;
  margin-left: 39vw;
  margin-top: 5vw;
  gap: 19vw; 
}

.diffpic{
  width: 15vw;
  height: 15vw;
}

.diffb button{
  width: 20vw;
}

.diffbody {
  height: 100vh;
  overflow: auto;
}
.diffbody::-webkit-scrollbar {
  display: none;
}
.diffbody {
  scrollbar-width: none;
  -ms-overflow-style: none;
}