|January 15th, 2015|
|blog, pictures, tech|
Every year I go back over the pictures I have and put up a selection of them under jefftk.com/pictures. For the first eight years or so this was just a simple list of thumbnails linking to larger versions of the images:
<a href="family_dinner.jpg"> <img src="family_dinner-tn.jpg"></a> <a href="alex_jeff_alice_rick_music.jpg"> <img src="alex_jeff_alice_rick_music-tn.jpg"></a> <a href="davy_alex.jpg"> <img src="davy_alex-tn.jpg"></a>Clicking on a picture, viewing it, and clicking back is kind of annoying, so I added a lightbox view last year. This year I wanted a better experience on my phone, so I rewrote the lightbox code to handle phones. 
Over time the thumbnails got bigger and bigger as ideas about acceptable bandwidth have changed:
sed 's~img src="\([^"]*\)-tn.jpg"~ img src="\1-tn.jpg" srcset="\1-tn.jpg 1x, \1-2x.jpg 2x"~'
(Historical consistency was very helpful here.)
 Code is on github.
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