03demo · 学习笔记

~~~ <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style> .one{ background-color: pink; color:#fff; text-align: center; /* height:50px; */ line-height: 50px; } </style> </head> <body> <p class="one">hello world</p> </body> </html> ~~~