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CSS border-image-slice 属性
trycss3_js_border-image-slice
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<!DOCTYPE html> <html> <head> <style> div { border: 15px solid transparent; padding: 15px; border-image: url(/demo/images/border.png); border-image-slice: 30; border-image-repeat: round; } </style> </head> <body> <h1>Change border-image-slice with JavaScript</h1> <div id="main"> <h1>Hello</h1> </div> <p>Click the "Try it" button to change the value of the borderImageSlice property.</p> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("main").style.borderImageSlice = "30%"; } </script> </body> </html>