.ds-container {
  margin-top: 8.75rem;
}
.ds-container img {
  width: 100%;
  height: 100%;
}
.ds-container .ds-rules {
  padding: 1.375rem 0;
}
/* .ds-teaching .ds-teach-img:first-child, .ds-teaching .ds-teach-img:nth-child(2), .ds-teaching .ds-teach-img:nth-child(3), .ds-teaching .ds-teach-img:nth-child(4) {
  padding-right: 0.875rem;
}
.ds-teaching .ds-teach-img {
  height: 9.75rem;
} */
.ds-teaching {
  box-sizing: border-box;
  padding: 1rem 0;
  display: flex;
  justify-content: center;
  justify-items: stretch;
  align-items: stretch;
  grid-gap: 16px;
}
.ds-teaching img {
  border-radius: 0.25rem;
} 
.ds-px-td {
  padding: 1.375rem 0;
  height: 23.4375rem;
  cursor: pointer;
}
.ds_modal .modal-body {
  padding-bottom: 2rem;
}

.body-container-grid {
  margin-top: 32px;
  display: grid;
  justify-content: center;
  justify-items: stretch;
  align-items: stretch;
  grid-gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}
.body-container-grid .img-item {
  cursor: pointer;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  padding-top: 41.67%;
} 
.body-container-grid .img-item img {
  height: 100%;
  width: 100%;
  background-size: 100%;
  position: absolute;
  left: 0;
  top: 0;
}