CSS animation, FadeIn / FadeOut 2 images continuously

Question

I have created sample CodePen here.

I tried below but didn\'t work.

 .elementToFadeInAndOut {
        width:200px;
        height: 200px;
        back         


        

Answer 1

See below. I added a background color to the third image to make it visible.

#img3 {
  background-color: red; /* to make it visible */
}

.flexDisplay {
  display: flex;
}

.wrapper {
  display: flex;
  justify-content: space-evenly;
}

.loginImage {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.img1 {
  animation: spin 3s linear infinite;
  opacity: 0.1;
  width: 200px;
  height: 200px;
  align-items: center;
}

.elementToFadeInAndOut {
  width: 200px;
  height: 200px;
  background: red;
  animation: fadeinout 4s linear infinite;
}

@keyframes fadeinout {
  0%,
  100% {
    opacity: 0;
  }
  50% {
    opacity: 1;
  }
}