1.边框
<!DOCTYPE html><html lang="zh-CN"><head> ???<meta charset="UTF-8"> ???<title>07边框示例</title> ???<style> ???????div { ???????????height: 200px; ???????????width: 300px; ???????????background-color: red; ???????????/*border-width: 10px;*/ ???????????/*border-color: green;*/ ???????????/*border-style: solid; ???!* 实线 *!*/ ???????????/* 简写边框属性 */ ???????????/*border: 10px solid green; ??!* 10像素 实线 绿色的边框 *!*/ ???????????/*border: 10px dashed green;*/ ???????????/*border: 10px dot-dash green;*/ ???????????border: 10px dotted green; ?/* 10像素 点状线 绿色的边框*/ ???????} ???</style></head><body><div></div></body></html>CSS属性（边框）
原文地址：https://www.cnblogs.com/whylinux/p/10229107.html