鼠标悬停和移除
效果图
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> #div1{ width:100px; height:100px; background-color:red; border-radius:20px; margin:0 auto; } </style> </head> <body> <div id="div1" onmouseover="toGreen()" onmouseout="toRed()"></div> <script> function toRed() {var x=document.getElementById("div1"); x.style.width="100px"; x.style.height="100px"; x.style.backgroundColor="red"; x.style.borderRadius="20px"; } function toGreen() {var v=document.getElementById("div1"); v.style.width="300px"; v.style.height="300px"; v.style.backgroundColor="green"; v.style.borderRadius="30px"; } </script> </body> </html>
鼠标悬停onmouseover在红色上面，变成绿色，鼠标移开onmouseout变红色