body {
    background-color: black ;
    color: white;
    text-align: center;
    
}

h1{
    
    text-align: center;
}

h2{
    text-align: center;
}

a {
    color: red;
}

.colonne {

	align: center;
	column-count: 3;
	-moz-column-count: 3;
	-webkit-column-count: 3;
	column-gap: 20px;
	-moz-column-gap: 20px;
	-webkit-column-gap: 20px;
}

.colonne2 {

	align: center;
	column-count: 2;
	-moz-column-count: 2;
	-webkit-column-count: 2;
	column-gap: 20px;
	-moz-column-gap: 20px;
	-webkit-column-gap: 20px;
}

img {
     -webkit-transition: all 0.2s;
     -moz-transition: all 0.2s;
     -ms-transition: all 0.2s;
     -o-transition: all 0.2s;
     transition: all 0.2s;
}

img:hover {
     transform:scale(1.2);
}

footer {
    
    text-align: center;
}

header {
    
    text-align: center;
}