<div id="grid-container"></div> #grid-container {display: grid;grid-template-columns: repeat(3, 1fr); /* 这里设置每列的宽度 */grid-gap: 10px; /* 这里设置网格项之间的间距 */ }<div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div>