.thirteen {
  position: relative;
}
.containerSustain > div {
    width: 100%;
    height: 100vh;
    overflow-x: hidden;
  }

  .mySlides8 {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  
  .lineDot8 {
    position: absolute;
    width: 100%;
    height: 10%;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
  }
  .boxDots {
    position: absolute;
    width: 100%;
    height: 10%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    bottom: 0;
  }
  
  .dot8 {
    cursor: pointer;
    height: 5px;
    width: 30px;
    margin: 2px 2px;
    background-color: #bbb;
    border-radius: 2px;
    display: inline-block;
    z-index: 7;
    transition: background-color 0.6s ease;
  }
  
  .activeDot8, .dot8:hover {
    background-color: rgb(255, 145, 0, 0.75);
  }
  
  .slopeBegin8 {
    background: linear-gradient(to right, rgb(92, 155, 147) 0%, rgb(135, 186, 202) 100%);
    clip-path: polygon(0% 0, 100% 0, 100% 100%, 0% 100%);
  }
  
  .slopeEnd8 {
    clip-path: polygon(70% 0, 100% 0, 80% 100%, 50% 100%);
  }
  
  .slopeBegin8,
  .slopeEnd8 {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 0;
  }
  
  .svgText8 {
    cursor: pointer;
    position: absolute;
    color:#ffffff; 
    font-size:10vmin; 
    font-weight:700;
    text-align: center;
    z-index: 3;
    transition: 2s;
  }
  .svgText8:hover {
    opacity: 0.6;
    transform: scale(0.9);
  }

  #subTitle8 {
    position: absolute;
    width: 10vw;
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    align-items: center;
    align-content: center;
    z-index: 9;
    top: 10%;
    left: 0;
  }
  #firstBlock8 {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    top: 10%;
    margin-left: 12%;
    width: 80%;
    z-index: 2;
  }

/*   .textBIM{
    width: 700px;
    color: white;
    font-size: 44px;
    text-align: left;
    font-weight: 600;
  } */
  .backText {
    cursor: pointer;
    color: white;
    font-size: 20px;
    text-align: left;
    font-weight: 500;
    text-decoration:underline;
    text-decoration-color: rgb(255, 217, 0);
}

  .imageSustain {
    position: absolute;
    left: 16%; 
    top: 10%;
    }
  .imageSustainBox {
    display: flex;
    flex-direction: column;
    gap: 10px; 
    height: 80vh;
    width: 70vw;
    }
  
  .textSustain {
    color: white;
    font-size: clamp(1vmin, 14pt, 2vmax);
    font-weight: 600;
    width: 80%;
    padding: 20px;
    border-radius: 10px;
    animation: rettangolo 1s;
  }
  .textSustain2 {
    color: white;
    font-size: clamp(1vmin, 14pt, 2vmax);
    font-weight: 600;
    text-align: center;
    width: 240px;
    padding: 10px;
    border-radius: 10px;
    animation: rettangolo 1s;
  }
  .immaginiTesto::-webkit-scrollbar {
    width: 10px;
    }
  .immaginiTesto::-webkit-scrollbar-track {
    background-color: #ccc;
    /* box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.5); */
    border-radius: 0 10px 10px 0;
    }
  .immaginiTesto::-webkit-scrollbar-thumb {
    background-color: #6b89ca;
    border-radius: 0 10px 10px 0;
    }

  .immaginette {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
  }
  .immaginette img {
    display: block;
    width: 20%;
  }

  .immaginette_bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-evenly;
    background-color: white;
    opacity: 0.8;
    max-width: 60vw;
    border-radius: 10px;
    padding: 10px;
    margin-top: 10px;
  }
  .immaginette_bottom img {
    display: block;
    width: 20%;
  }

  .immaginiTesto {
    display: flex;
    flex-wrap: wrap;     /* permette di andare a capo */
    gap: 10px;
    max-height: 55vh;       /* altezza massima visibile */
    overflow-y: auto;        /* scroll verticale */
    padding: 20px;    /* spazio in fondo */
    border-radius: 10px;
    width: 60vw;
    background-color: #ffffff31;
  }
  .immaginiTestoDiv {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
  }
  .immaginiTestoDiv img {
    width: 260px;
  }

  .mailTextGold {
        cursor: pointer;
        display: block;
        color: gold;
        padding: 3px;
        border-radius: 5px;
        border-style: solid;
        border-color: gold;       
    }

    .mailTextGold:hover {  
      color: gold;
      padding: 3px;
      border-radius: 5px;
      background: rgb(49, 124, 99);       
    }
    .mailTextGold:hover a {  
      color: gold;
      /* padding: 3px; */ 
      background: rgb(68, 68, 175);     
    }
  .frecciaRslide {
    cursor: pointer;
    display: none;
    margin-left: 0px;
    margin-top: 100px;
    transform: rotate(90deg) scale(1.8);
    background-color: #bbb;
    border-radius: 10px 10px 0 0;
    padding: 5px 50px 5px 50px;
  }
  .frecciaRslide:hover {
    transform: rotate(90deg) scale(2);
  }

       /* Extra small devices (phones, 600px and down) */
  @media only screen and (max-width: 374px)  {
    .dueFrecce {
      top: 83%;
    }
  }
  @media only screen and (min-width: 375px) {
    .dueFrecce {
      top: 83%;
    }
  } 
  @media only screen and (min-width: 1000px) {
    .dueFrecce {
      top: 94%;
    }
  } 
  @media only screen and (min-width: 1250px) {
     .immaginette img{
      width: 9%;
    } 
   /* .immaginiTestoDiv img {
      width: 180px;
    }
    .textSustain2 {
      width: 160px;
    }*/
  }