header {
    background-color: rgb(13, 95, 71);
    color: rgb(247, 247, 150);
    width: 100%;
    height: 120px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.title {
    border-bottom: 3px solid rgb(247, 247, 150);
    border-right: 3px solid rgb(247, 247, 150);
    padding: 1px 20px;
    border-radius: 0 0 10px 0;
}

main>div{
    border: 3px solid black;
    width: 10px;
    margin-right: 10px;
}

main>div{
    height: 200px;
    width: 300px;
    margin: 5px;
    background-size: 50px;
    background-repeat: no-repeat;
}
main>div:nth-child(1){
     background-image: url("../images/punto.png");
     background-position: center center;
}
main>div:nth-child(2){
    background-image: url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,bottom right;
}
main>div:nth-child(3){
    background-image: url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,bottom right,center center;
}
main>div:nth-child(4){
    background-image: url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,top right,bottom left,bottom right;
}
main>div:nth-child(5){
    background-image: url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,top right,bottom left,bottom right,center center;
}
main>div:nth-child(5){
    background-image: url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,top right,bottom left,bottom right,center center;
}
main>div:nth-child(6){
    background-image: url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png"),url("../images/punto.png");
    background-position: top left,top right,bottom left,bottom right,center left,center right;
}
main {
    display:flex;
}
body {
    text-align: center;
    margin: 8px;
}