.img-list {
    text-align: center;
    padding: 0% 3%;
}

    .img-list  li {
        width: auto;
        list-style-type: none;
    }

    .img-list img {
        width: 100%;
        border-radius: 5px;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    }

.mask {
  display: none;
  position: fixed;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
}

.img-box {
    width: 100%;
    max-width: 650px;
    padding: 10px;
    position: relative;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

    .img-box img {
        width: 100%;
        border-radius: 5px;
    }
    
.closee {
    color: #000;
    background: rgba(255, 255, 255, 0.8);
    width: 30px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    font-weight: bold;
    border-radius: 50%;
    cursor: pointer;
}

    .closee :hover {
        background: rgba(255,255,255,1);
    }

.is-visible {
  display: block !important;
}

/* Animation */
.fadein {
  animation: fadein 400ms ease-in-out;
}

@keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.fadeout {
  animation: fadeout 400ms ease-in-out;
}

@keyframes fadeout {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}