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cument createElement style document head appendChild link link rel stylesheet link type text css link media all link innerHTML textarea background url https proxy duckduckgo com iu u https i imgur com 2cOaJ png background attachment local background repeat no repeat padding left 30px padding top 11px border color ccc width 100 min height 100px line height 16px font size 13px box sizing border box let ta document createElement textarea document body appendChild ta ta value Once upon a time there lived a frog called Albert Albert was a modest old frog who enjoyed long morning sleeps and swims in his small pond Textarea color alternating line colors highlights let link document createElement style document head appendChild link link rel stylesheet link type text css link media all link innerHTML textarea width 100 min height 100px background url https proxy duckduckgo com iu u https i imgur com 2cOaJ png top 12px left auto no repeat linear gradient F1F1F1 50 F9F9F9 50 top left 100 32px border 1px solid CCC box sizing border box padding 0 0 0 30px resize vertical line height 16px font size 13px let ta document createElement textarea document body appendChild ta ta value Once upon a time there lived a frog called Albert Albert was a modest old frog who enjoyed long morning sleeps and swims in his small pond