.remerciementdiv {position:absolute;top:3px;left:3px;z-index:3;}

.wrapper {margin-left: auto;margin-right: auto;width: 700px;height:400px;}
h2,h3{text-align:center;}
h2{color:White;font-weight:bold;font-size:4em;}
h3{color:brown;font-weight:bold;font-size:2em;}
p {font-family:Arial, Helvetica, sans-serif;color:#333;font-size:14px;}