:root {
    --itemMinimumOpacity: 0;
    --fadeInDuration: 1.3s;
    --fadeOutDuration: 1.3s;
    --itemContent1BGcolor: rgb(248, 169, 23);
    --itemContent2BGcolor: rgb(147, 228, 147);
    --itemContent3BGcolor: lightblue;
    --itemContent4BGcolor: rgb(207, 207, 207);
    --itemContent5BGcolor: rgb(235, 235, 235);
  }
  
  .item-img {
    transition: transform 0.5s;
    vertical-align: middle;
  }
  
  .item-img:hover {
    -ms-transform: scale(1.55);
    /* IE 9 */
    -webkit-transform: scale(1.55);
    /* Safari 3-8 */
    transform: scale(1.55);
  }
  
  
  .project {
    transition: transform 0.5s;
    vertical-align: middle;
  }
  
  .project:hover {
    -ms-transform: scale(1.13);
    /* IE 9 */
    -webkit-transform: scale(1.13);
    /* Safari 3-8 */
    transform: scale(1.13);
  }
  
  .item {
    border-radius: 5px;
    padding: 0px 11px 0px 11px;
    position: absolute;
    opacity: var(--itemMinimumOpacity);
    cursor: default;
  }
  
  .item:hover {
    -ms-transform: scale(1.35);
    /* IE 9 */
    -webkit-transform: scale(1.35);
    /* Safari 3-8 */
    transform: scale(1.35);
  }
  
  .itemContent1 {
    background-color: var(--itemContent1BGcolor) !important;
    height: 55px;
    z-index: 5;
  }
  
  .itemContent2 {
    background-color: var(--itemContent2BGcolor) !important;
    z-index: 4;
    padding: 0px 9px 0px 9px;
  }
  
  .itemContent3 {
    background-color: var(--itemContent3BGcolor) !important;
    z-index: 3;
    padding: 0px 6px 0px 6px;
  }
  
  .itemContent4 {
    background-color: var(--itemContent4BGcolor) !important;
    z-index: 2;
    padding: 0px 6px 0px 6px;
  }
  
  .itemContent5 {
    background-color: var(--itemContent5BGcolor) !important;
    z-index: 1;
    padding: 0px 5px 0px 5px;
  }
  
  .fadeOut {
    opacity: var(--itemMinimumOpacity);
    -webkit-transition: opacity var(--fadeOutDuration) ease-out;
    -moz-transition: opacity var(--fadeOutDuration) ease-out;
    -ms-transition: opacity var(--fadeOutDuration) ease-out;
    -o-transition: opacity var(--fadeOutDuration) ease-out;
    transition: opacity var(--fadeOutDuration) ease-out;
  }
  
  .fadeIn {
    opacity: 1;
    -webkit-transition: opacity var(--fadeInDuration) ease-out;
    -moz-transition: opacity var(--fadeInDuration) ease-out;
    -ms-transition: opacity var(--fadeInDuration) ease-out;
    -o-transition: opacity var(--fadeInDuration) ease-out;
    transition: opacity var(--fadeInDuration) ease-out;
  }
  
  
  
  
  .content-container{
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 1.3s;
    transform-style: preserve-3d;
  }
  
  .content-container-front, .content-container-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden; /* Safari */
    backface-visibility: hidden;
  }
  
  .content-container-back {
    transform: rotateY(180deg);
  }
  
  
  
  /* Works on Firefox */
  * {
    scrollbar-width: thin;
    scrollbar-color: rgba(55, 55, 55, 0.4);
  }
  
  /* Works on Chrome, Edge, and Safari */
  *::-webkit-scrollbar {
    width: 8px;
  }
  
  *::-webkit-scrollbar-thumb {
    background-color: rgba(55, 55, 55, 0.4);
    border-radius: 3px;
  }