HTML 및 CSS로 반응형 이미지 그리드를 만드는 방법은 무엇입니까?

다음은 HTML 및 CSS를 사용하여 반응형 이미지 그리드를 만드는 코드입니다.

예시

<!DOCTYPE html>
<html>
<style>
* {
   box-sizing: border-box;
}
h1 {
   text-align: center;
}
.outer-grid {
   display: flex;
   flex-wrap: wrap;
   padding: 0 4px;
}
.inner-grid {
   flex: 25%;
   max-width: 25%;
   padding: 0 4px;
}
.inner-grid img {
   margin-top: 8px;
   width: 100%;
   padding: 10px;
}
@media screen and (max-width: 800px) {
   .inner-grid {
      flex: 50%;
      max-width: 50%;
   }
}
@media screen and (max-width: 600px) {
   .inner-grid {
      flex: 100%;
      max-width: 100%;
   }
}
</style>
<body>
<h1>Responsive Image Grid Example</h1>
<div class="outer-grid">
<div class="inner-grid">
<img src="https://images.pexels.com/photos/1083822/pexels-photo-1083822.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/1083822/pexels-photo-1083822.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/1083822/pexels-photo-1083822.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
</div>
<div class="inner-grid">
<img src="https://images.pexels.com/photos/3805102/pexels-photo-3805102.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/3805102/pexels-photo-3805102.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/3805102/pexels-photo-3805102.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
</div>
<div class="inner-grid">
<img src="https://images.pexels.com/photos/3863778/pexels-photo-3863778.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/3863778/pexels-photo-3863778.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
<img src="https://images.pexels.com/photos/3863778/pexels-photo-3863778.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500"/>
</div>
</div>
</body>
</html>