body{
    font-family: Arial, sans-serif;
    margin: 0;
    padding: o;
    text-align: center;
    background-color: #ddd;

}

header{
background-color: #721717;
color: #fff;
padding: 20px;

}

/* Contenedor Flexible */
.container{
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 20px;
    
}

.box{
    background-color: black;
    color: #fff;
    padding: 20px;
    width: 30%;
    border-radius: 15px;

}

footer{
    background-color: #34495e;
    color: white;
    padding: 10px;
    margin-top: 20px;
    position: bottom;

}

/* en escritorio no lo voy a mostrar*/
.icon{
    width: 50px;
    height: 50px;
    float: left;
    display: none;
}

/* Media Query*/
@media screen and (max-width:768px){
    body{
        background-color: aqua;
    }
    .container{
        flex-direction: column;
        align-items: center;
        
    }

    .box{
        width: 90%;
        background-color: red;
    }

    .icon{
       display: block; 
    }
}