CodePen Embed - Атрибуты можем сами придумать

<h2>Атрибуты можем сами придумать</h2>

<div random-attr="my attr 1">Мой атрибут 1 DIV</div>
<div random-attr="my attr 2">Мой атрибут 2 DIV</div>

[random-attr="my attr 1"] {
  color: blue;
}

[random-attr="my attr 2"] {
  color: red;
}

This Pen is owned by Nikolay Koval on CodePen.

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