.colonne_texte {background-color: white;}
.colonne_texte a {color: blue;}

@media all and (min-width: 640px){
	.colonne_texte a {color: red;}
}

@media all and (min-width: 1024px){
	#fond_degrade {width: 100%;height: 400px;position: absolute;top: 0px;left: 0px;}
}