body {
  background: url(../images/fond.png) ;
  background-repeat: no-repeat center center fixed;
  background-size: cover;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
}

.conteneur .logo {
    display:block;    
    background-image: url(../images/logodaikin.png);
    background-repeat: no-repeat;
    float : left;
    height: 500px;
    width:200px;
    
}

a img {
	transform: scale(1);
    transition-duration: 0.3s;
}
a img:hover {
   transform: scale(1.1);
}

.content.grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 10px 50px;
}
.content.grid > div {
    width: 400px;
    text-align: center;
    margin: 20px;
}