@import url('https://fonts.googleapis.com/css?family=Roboto:100,300,400');

body{
    margin: 0;
    background-color: rgb(240, 240, 240);
    position: relative;
}

#fleche{
    width: 20px;
    margin: 10px;
    float: left;
    margin: 2px 10px 0;
}

.retour{
    position: absolute;
    top: 6px;
    left: 10px;
}

a{
    color: black;
}

h2{
    font-family: Roboto;
    text-align: center;
    margin: 14px 0;
}

h3{
    font-family: Roboto;
    float: left;
    margin: 0;
    line-height: 16px;
}

.container{
    width: 1000px;
    height: 600px;
    border: 2px solid black;
    margin: 5px auto;
    background-color: white;
    position: relative;
    overflow: hidden;
}

.carreNoir{
    width: 20px;
    height: 20px;
    background-color: black;
    float: left;
    border: 1px solid white; 
    box-sizing: border-box;
}

#chat{
    width: 40%;
    margin-left: 300px;
    position: absolute;
    animation: example 3s;
}
@keyframes example {
    0%   {top:800px;}
    100% {top:0px;}
}

#thug{
    width: 40%;
    margin-top: 140px;
    position: absolute;
    left: 250px;
    animation: example2 3s;
}
@keyframes example2 {
    0%   {top:-500px;}
    100% {top:0px;}
}