css适配浏览器

/* 基本媒体查询 */
@media screen and (max-width: 600px) {
  body {
    background-color: lightblue;
  }
}

/* 结合多个条件 */
@media screen and (min-width: 600px) and (max-width: 1024px) {
  body {
    background-color: green;
  }
}

.container {
  width: 100%;
}

.column {
  width: 50%;
  float: left;
}

.container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.item {
  width: 100px;
  height: 100px;
  background-color: red;
}

.container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 100px);
  gap: 10px;
}

.item {
  background-color: #f0f0f0;
  padding: 20px;
  text-align: center;
}