:root {
    --sombra-padrao: 0px 0px 5px 5px rgba(0, 0, 0, 0.1);
    --raio-padrao: 10px;
}

* {
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    background-color: #39a7db;
}