<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>title</title> <style> * { margin: 0; padding: 0; } div { width: 200px; height: 150px; background-color: pink; border-radius: 100px; } </style> </head> <body> <input type="button" value="变宽" id="btn" /> <div id="dv"></div> <script src="common.js"></script> <script> my$("btn").onclick = function () { var width = 200; var timeid = setinterval(function () { width += 10; if (width == 800) { clearinterval(timeid); } my$("dv").style.width = width + "px"; }, 100); }; </script> </body> </html>
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offset、client、scroll (width,height、left,top、X,Y)
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