.curtain {
    position :fixed;
    z-index: 200;
    margin: 0 auto;
    width: 100vw;
    height: 100%;
    overflow: hidden;
  }
  .curtain__wrapper {
    width: 100%;
    height: 100%;
  }

  .curtain__wrapper input[type=checkbox] {
        position: absolute;
        cursor: pointer;
        width: 100%;
        height: 100%;
        z-index: 100;
        opacity: 0;
        top: 0;
        left: 0;
      }
  .curtain__wrapper input[type=checkbox]:checked ~ div.curtain__panel--left {
    -webkit-transform: translateX(0%);
            transform: translateX(0%);
  }
   
  .curtain__wrapper input[type=checkbox]:checked ~ div.curtain__panel--right {
    -webkit-transform: translateX(0%);
            transform: translateX(0%);
  }


  .curtain__panel {
    display: -webkit-box;
    display: flex;
    -webkit-box-align: center;
            align-items: center;
    background:rgba(0,0,0,0.5);

    float: left;
    position: relative;
    width: 50%;
    height: 100%;
    -webkit-transition: all 2s ease-out;
    transition: all 2s ease-out;
    z-index: 2;
  }
  .curtain__panel--left {
     
    -webkit-box-pack: end;
            justify-content: flex-end;
    -webkit-transform: translateX(-100%);
            transform: translateX(-100%);
            /* animation: glowhover 2s ease-in-out infinite; */
           
  }



  .curtain__panel--right {
      
        
    -webkit-box-pack: start;
            justify-content: flex-start;
    -webkit-transform: translateX(100%);
            transform: translateX(100%);
        /* animation: glowhover 2s ease-in-out infinite; */
  }
  .curtain__content {
    -webkit-box-align: center;
            align-items: center;
    background: #333;
    color: #fff;
    display: -webkit-box;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
            flex-direction: column;
    height: 100%;
    -webkit-box-pack: center;
            justify-content: center;
    padding: 1rem 0;
    position: absolute;
    text-align: center;
    z-index: 1;
    width: 100%;
  }
  @keyframes glow {
        40% {
                filter: drop-shadow(2px 2px 2px rgba(255, 255, 255, 1)) blur(3px) 
                /* filter: blur(2px); */
         
        }
      }
@keyframes glowhover {
        40% {
                filter:  blur(3px) 
                /* filter: blur(2px); */
         
        }
      }

      @media(max-width: 1920px){
     
    }