The fingerprint images have also been reduced in resolution so as to render them unusable except for illustration.

指纹图像也降低了分辨率，除了起到说明外，无法做其他用途。

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Also, because the images are generic and may render on a wide range of devices, they serve as a catch-all for devices that do not map to other device-specific image assets.

同样，由于图片是普通格式且可能用于各种设备中，所以它们应适用于所有设备，而不能设计成面向特定设备的图片。

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Render your web pages as soon as possible while other components such as images and scripts are still loading.

把CSS放在顶端：把CSS文件放在网站的顶端，可以是网站尽可能同时加载其他部件，如图像和文字。

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