#main {
    background: linear-gradient(rgba(255, 255, 255, .3), rgba(255, 255, 255, .3)), url(images/background22.jpg);
    background-repeat: no-repeat;
}

/*
#main.clicked {
    background-image: url();
    background-color: #0000;
}
*/

.linkClicked {
    background-color: #ccc;
}

.center {
    position: absolute;
    left: 500px;
    top: 150px;
}

.left {
    padding-top: 10%;
    height: 100vh;
    background: #001a35;
    white-space: nowrap;
    width: 53px;
    transition: width 1s;
    font-size: 18px;
}

.left:hover {
    width: 250px;
}

.item:hover {
    background-color: #ccc;
}

.item {
    overflow: hidden;
    color: #fff;
}

.title {
    background-color: #eee;
    border-style: solid;
    border-color: #ccc;
    border-width: 1px;
    box-sizing: border-box;
}


.details {
    margin-left: 15%;
    top: 100px;
    position: absolute;
    width: 60%;
    text-align: center
}
@keyframes slide {
  0% {
    left: 0;
    top: 0;
  }
    25% {
    left: 122px;
    top: 100px;
  }
  50% {
    left: 244px;
    top: 0;
  }
  75% {
    left: 488px;
    top: 100px;
  }
  100% {
    left: 800px;
    top: 0;
  }
}
.stage {
  border-radius: 6px;
  height: 150px;
  position: relative;
}
.stage:hover .ball {
  animation-name: slide;
  animation-duration: 2s;
  animation-timing-function: ease;
  animation-delay: .5s;
}
.ball {
  position: absolute;
}

.slide:hover {
    color: #4c6ef5;
}