行内元素(HTML、CSS)
<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>行内元素</title><style>span {/* 行内元素中直接设置 width和height width是无效的 */height: 100px;background-color: red;}</style></head><body><span>文件内容</span> <strong>编辑</strong></body></html>