Base tag contains two attributes: href and target
1.href attribute
<!DOCTYPE html><html><head><title></title><base href="http://www.baidu.com/"></base></head><body><img src="./img/bd_logo1.png"></body></html>
2.target attribute
<!DOCTYPE html> <html> <head><title></title> <meta charset="utf-8"><base target="_blank"> </head> <body> <a href="http://baidu.com/">百度一下,你就知道</a> <a href="http://qq.com">腾讯新闻</a> </body> </html>
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