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如何使图像适合窗口高度?

[英]How to make image fit window height?

I'd like to set an image to match the height of my page minus top menu (50px). 我想将图片设置为与页面高度减去顶部菜单(50像素)相匹配。 Also, I'm using twitter bootstrap 3 and I know it's got img-responsive class, which is great and I'd like to use this class in combination with making the image height=100%-50px . 另外,我使用的是twitter bootstrap 3 ,我知道它具有img-responsive类,这很棒,我想结合使用此类,使图像height=100%-50px

How can I do that? 我怎样才能做到这一点?

If you want combine percents with pixel you can use css3 property calc(): 如果要将百分比与像素合并,可以使用css3属性calc():

height: calc(100% - 50px);

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