摘要：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>css权重</title> </head> <style> /*权重*/ /*多个样式作用在一个元素上，样式冲突时就会产生样式优先级权重问题*/ /*id选择器 阅读全文
摘要：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>CssBase</title> <link rel="stylesheet" href="lesson.css" type="text/css"> <style 阅读全文
摘要：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>form</title> </head> <body> <form action="" method="post" enctype="multipart/for 阅读全文
摘要：
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>table</title> </head> <body> <hr> <table border="1"> <caption>表格</caption> <thea 阅读全文