CSS sélectionner le texte à l'intérieur de la div

CSS doesn't work this way. As biziclop says in the comments, text nodes can't be selected with CSS. You'll either have to wrap your text in a <span> and use

.test span {
    cursor: pointer;
}
With

<div class="test">
    <span>Text</span>
</div>
Or set .test to display: inline, but that won't let you give it a width, which is not the behaviour you want. <span>s are fine, in this case.
Santino