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<!DOCTYPE html> <html> <head> <style> #main { width: 140px; height: 300px; border: 1px solid #000000; display: flex; flex-flow: row wrap; align-content: space-around; } #main div { width: 70px; height: 70px; } </style> </head> <body> <h1>HTML Style 对象</h1> <h2>alignContent 属性</h2> <div id="main"> <div style="background-color:coral;"></div> <div style="background-color:lightblue;"></div> <div style="background-color:khaki;"></div> <div style="background-color:pink;"></div> <div style="background-color:lightgrey;"></div> <div style="background-color:lightgreen;"></div> </div> <p>单击按钮将 alignContent 属性的值设置为“space-between”。</p> <button onclick="myFunction()">试一试</button> <script> function myFunction() { document.getElementById("main").style.alignContent = "space-between"; } </script> </body> </html>