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CSS word-wrap 属性
trycss3_js_word-wrap
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<!DOCTYPE html> <html> <head> <style> #myDIV { width: 150px; height: 100px; background-color: lightblue; border: 1px solid black; } </style> </head> <body> <h1>Change word-wrap with JavaScript</h1> <p>Click the "Try it" button to change the let the DIV element wrap words:</p> <div id="myDIV">Thiscouldbeaninsainlylargeword</div> <button onclick="myFunction()">Try it</button> <script> function myFunction() { document.getElementById("myDIV").style.wordWrap = "break-word"; } </script> </body> </html>