body {
  font-family: Arial, sans-serif;
  background-color: #f7f7f7;
  margin: 0;
  padding: 20px; }

h1 {
  text-align: center;
  color: #007bff;
  margin-bottom: 30px; }

ul {
  list-style: none;
  padding: 0; }

li {
  margin: 20px 0;
  border: 1px solid #ddd;
  border-radius: 5px;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); }

.custom-item {
  display: grid;
  display: grid;
  place-items: center;
  width: 100%; }

.custom-heading {
  font-size: 24px;
  color: #555; }

.custom-image {
  max-width: 100%;
  height: auto;
  max-height: 300px;
  display: block;
  margin: 10px auto; }

@media screen {
  .custom-image {
    max-width: 100%;
    height: auto;
    max-height: 300px;
    display: block;
    margin: 10px auto; }
  .custom-heading {
    font-size: 24px;
    color: #555; }
  .custom-item {
    display: grid;
    display: grid;
    place-items: center; }
  li {
    margin: 20px 0;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); }
  ul {
    list-style: none;
    padding: 0; }
  h1 {
    text-align: center;
    color: #007bff;
    margin-bottom: 30px; }
  body {
    font-family: Arial, sans-serif;
    background-color: #f7f7f7;
    margin: 0;
    padding: 0; } }