bloc d'affichage JavaScript
document.getElementById("someElementId").style.display = "block";
Grepper
document.getElementById("someElementId").style.display = "block";
<!-- EXAMPLE -->
<div class="your_class" style="display:none">
<!--[SYNTAX: style="display:none"] -->
display: block;
A " display: block; " will add whitespace above and below it element,
and tolerates no HTML elements next to it, unless you use a float declaration