cursos/css/css-desde-cero-edteam-2024/23-border/styles.css

.box {
    width: 300px;
    height: 200px;
    background: blue;
    margin: 2em auto 0;
    
    /* border-width: 10px;
    border-style: solid;
    border-color: black; */

    border: 10px solid black;
}