Подборка из 15 бесплатных CSS чекбоксов. Ссылки и на демо и скачивание (.zip)
Leonard Meagher

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demo and code
thelaazyguy

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demo and code
Matthew Shields
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demo and code
Katheer Mizal

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demo and code
Rplus

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demo and code
Danian

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demo and code
Andreas Storm

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demo and code
Ian Egner

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demo and code
Realistic Switch

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demo and code
Simple Checkbox Switcher

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demo and code
Happy Little Checkboxes

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demo and code
Jelly Checkbox

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demo and code
Full CSS Checkbox
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demo and code
Switchy Checkbox

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demo and code
Custom Checkboxes, Radio Buttons And Select Boxes

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demo and code