@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');
    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    body {
        font-family: 'Roboto', sans-serif;
    }
    
    .box-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 100px;
        margin-bottom: 20px;
    }
    
    .box-1 {
        width: 300px;
        height: 450px;
        background-color: #e28525;
    }
    
    .box-2 {
        width: 300px;
        height: 450px;
        background-color: #016972;
    }
    
    .box-3 {
        width: 300px;
        height: 450px;
        background-color: #00403f;
    }
    
    div h1 {
        color: white;
        font-family: 'Roboto', sans-serif;
        font-weight: 100;
        margin-top: 45px;
        margin-left: 45px;
    }
    
    div p {
        color: rgba(255, 255, 255, 0.644);
        font-family: 'Roboto', sans-serif;
        font-size: 15px;
        margin-top: 25px;
        margin-left: 45px;
    }
    
    .b1 {
        color: #e28525;
        background-color: white;
        text-decoration: none;
        border: none;
        width: 145px;
        height: 45px;
        border-radius: 35px;
        font-weight: bold;
        margin-top: 75px;
        margin-left: 45px;
    }
    
    .b1:hover {
        cursor: pointer;
    }
    
    .b2 {
        color: #016972;
        background-color: white;
        text-decoration: none;
        border: none;
        width: 145px;
        height: 45px;
        border-radius: 35px;
        font-weight: bold;
        margin-top: 75px;
        margin-left: 45px;
    }
    
    .b2 {
        cursor: pointer;
    }
    
    .b3 {
        color: #00403f;
        background-color: white;
        text-decoration: none;
        border: none;
        width: 145px;
        height: 45px;
        border-radius: 35px;
        font-weight: bold;
        margin-top: 75px;
        margin-left: 45px;
    }
    
    .b3 {
        cursor: pointer;
    }
    
    #change-color {
        border: none;
        margin-top: 20px;
        margin-left: 20px;
        background-color: white;
        border: 2px solid black;
        border-radius: 15px;
        padding: 5px;
        transition: all ease 300ms;
        text-decoration: none;
    }
    
    #change-color:hover {
        border: 2px solid white;
        background-color: #2C2C30;
        color: white;
        cursor: pointer;
    }
    
    .img {
        margin-top: 40px;
        margin-left: 45px;
        width: 60px;
    }
    
    .brazil-flag {
        width: 30px;
        height: 20px;
        margin-left: 10px;
    }
    
    .dev {
        display: flex;
        margin-left: 15px;
        margin-top: 100px;
        color: rgba(0, 0, 0, 0.76);
    }
    
    #dev {
        font-weight: bold;
    }