本文介绍了更改文件上传控件中按钮的颜色的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我一直在尝试更改文件上传控件中按钮的颜色。我唯一能改变的就是边界。由于安全原因，似乎几乎不可能改变其颜色。有任何关于克服这个问题的想法。
I have been trying to change the color of button in file upload control. The only thing that I was able to change was the border. It appears its almost impossible to change its color due to security reasons. Any idea on getting over this problem.
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