Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

HTML

<div class="bloc" style="height:200px;">bloc 1</div>

<div class="bloc" style="height:170px;">bloc 2</div>

CSS

div {
  float:left;
  background:red;
  margin:10px;
  width:80px;
}

/* Je veux récupérer la hauteur des blocs existantes, et ajouer "x" px */
.bloc {height:calc(100% + 20px)!important;}

JavaScript

//                                                       Marche pas :(   ====>

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JSFiddle - React, Tailwind, and code Playground

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CSS

JavaScript

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Use pre-released features

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