.texte { font-size: 35px; 
 text-align: center;
padding :  5px;
margin-bottom :10px;
color: white;
}

.cadre { font-size: 15px;
  font-weight:bold;
padding :  5px;
text-align: center;
border: 2px solid white;
border-radius :  10px;
margin-bottom :10px;
background-color:white;
}

.image_centree{
  width : 56%;
  height : %;
  border: px #23282d solid; 
  text-align: center;
   margin-left: auto;
   margin-right: auto;
   } 

a:hover {
color: white;
}

a:visited {
color:yellow ;
}

a:focus {
color: white;
  background:white;
}

body {
	background-image:url("https://www.highreshdwallpapers.com/wp-content/uploads/2013/01/Outer-Space-Wallpaper.jpg");
	
}