.texte { font-size: 14px;
font-weight : bold;
text-align: center;
padding : 5px;
margin-bottom : -18px;
color : #17a589;
}

.cadre { font-size: 20px;
  font-weight: bold;
padding :  2px;
text-align: center;
border: 2px solid black;
border-radius : 1000px;
margin-bottom : 15px;
background-color: #a3e4d7 ;
}

.image_centree {
  width : 50%;
  height : 50%;
  border: 2px #23282d; 
  text-align: center;
   margin-left: auto;
   margin-right: auto;
   } 

a:hover {
color: red;
}

a:visited {
color: purple;
}

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