.conjunto{
display: flex;
align-items: center;
justify-content: center;
margin: 0px;

}

.quadrado{
display: flex;
background-color: white;
height: 99px;
width: 99px;
align-items: center;
justify-content: center;
margin: 5px;
font-size: 90px;
}

.cabecalho{
display: flex;
background-color: white;
height: 99px;
width: 99px;
align-items: center;
justify-content: center;
margin: 5px;
font-size: 50px;
color: black;
}

div {
margin: 0px;
}

body {
background-color: #00A2E8;
background-image: url('img/mar.png');
}