.slideshow-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.mySlides {
  width: 30%;
    margin: 6px;
    border: 2px solid #832929;
    border-radius: 3px;
    padding: 6px;
}

.mySlides img {
  width: 100%;
  height: auto;
}

.modal {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgba(0,0,0,0.9);
  
}

.modal-content {
  margin: auto; /* ทำให้ภาพตรงกลางทั้งตัวในโมดัล */
  display: block;
  max-width: 80%;
  max-height: 80%;
      bottom: 0;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
}

.close {
  color: #fff;
  position: absolute;
  top: 10px;
  right: 20px;
  font-size: 30px;
  font-weight: bold;
  cursor: pointer;
}

.close:hover,
.close:focus {
  color: #ccc;
  text-decoration: none;
  cursor: pointer;
}