<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style> span{ /*float: left;*/ /*position: absolute;*/ /*display: inline-block;*/
/*display: block;*/
width: 100px; height: 100px; background:red; } </style> </head> <body> <span>123</span> </body> </html>
