.formulaire_spip  textarea.markItUpEditor, .formulaire_spip li.editer_texte textarea {
	width: 100%; 
	box-sizing: border-box; 
	-webkit-box-sizing: border-box; 
	-moz-box-sizing: border-box;  
	-ms-box-sizing: border-box;
}

/***************************/
/* previsu */
.markItUp .markItUpPreview {
	font-size: 1.05em; 
	line-height: 1.4em;
}