Is it possible to add a css border to开发者_开发知识库 a HTML Imagemap?
I doubt there's a cross browser CSS solution, but this jQuery plugin can do what you're after:
jQuery MapHilight  
It can show the border without hover if you specify alwaysOn:true, as seen on the first example there (the black part is done using the plugin).
2 option :
1 - wrap your image with div and give him border .
2 - build your image map with divs + css background images
like in this example :
http://www.noobcube.com/tutorials/html-css/css-image-maps-a-beginners-guide-/
 
         
                                         
                                         
                                         
                                        ![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif) 
                                         
                                         
                                         
                                         加载中,请稍侯......
 加载中,请稍侯......
      
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