1、网页常用的图片格式有三种:jpg、gif、png。jpg有上百万种颜色,是一种有损压缩,不支持透明,一般用于大图和照片。gif最多支持256种颜色,适用于图标、小颜色的图片。png支持透明。使用前可以用firework的optimise面版对比选择。
2、assets面版会显视site下的所有照片,另外也可以使用收藏夹的形式组织图片。
3、在dw中,直接从files/assets面版直接拖图放进工作区,dw就会弹出相关参数的对话框让你填写。也可以从insert-image或insert面版中插入。
4、在edit-preference中的file type/editor选项可以修改不同类形文件在dw中被双击时使用什么软件编辑。
5、在insert-image中选择psd文件时,dw会自动打开ps导出图片的对话框。以这种方式导入的图片左上角会有一个编辑的图片,双击会直接打开ps编辑源文件。同时在下方的属性面版的orignal处会显视psd的路径。
6、设置图片样式时,把float和clean都设为left,这样文字就会放在图片的左边。设置border时,把上和左的颜色设浅一点,右下的颜色深一点,padding设为1.这样就会产生阴影的效果。
7、可以使用伪类:link(未仿问):visited(已仿问),:hover(鼠标停留),:action(被选择)去实现当元素被鼠标停在上面时更换背景图片。未仿问与鼠标停在上面的两边图片可以做成一张图片,然后使用backbround-position设置位置。
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