.texte { font-size: 15px; 
 text-align: center;
padding :  5px;
margin-bottom :10px;
}

.cadre { font-size: 35px;
  font-weight:bold;
padding :  5px;
text-align: center;
border: 2px solid black;
border-radius :  10px;
margin-bottom :10px;
background-color: #708090;
}

.image_centree{
  width : 50%;
  height :100%;
  border: 3px #23282d solid; 
  text-align: center;
   margin-left: auto;
   margin-right: auto;
   } 

.lien_centree{
  width : 50%;
  height :100%; 
  text-align: center;
   margin-left: auto;
   margin-right: auto;
   } 

.text_left{
 font-size: 25px;
  font-weight:bold; 
  width : 50%;
  height :100%; 
  text-align: left;
   margin-left: auto;
   margin-right: auto;
   margin-bottom: 0px;
   background-color: #DCDCDC
}
.text_centree{
 font-size: 20px;
  font-weight:bold; 
  width : 48%;
  height :10%; 
  text-align: left;
   margin-left: auto;
   margin-right: auto;
   margin-top: 0px;
   margin-bottom: 0px;
   background-color: #DCDCDC;

}

a:focus {
color: yellow;
  background: gray;
}