Bootstrap 3 练习
您可以使用 W3Schools 的练习来测试您的 Bootstrap 3 技能。
练习
我们为每个 Bootstrap 3 章节收集了各种 Bootstrap 3 练习（含答案）。
尝试通过填写代码中缺少的部分来解决练习。如果您遇到困难，请点击“显示答案”按钮查看您做错的地方。
计算您的得分
每个正确答案得 1 分。您的得分和总分将始终显示。
如果您不了解 Bootstrap 3，我们建议您从头开始阅读我们的 Bootstrap 3 教程。
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