@media screen and (max-width:700px){
    header .container{
        display: flex;
        flex-direction: column;
    }
    
    .botao {
        margin-top: 5px;
        width: 200px;
    }

    .modal {
        top: 5%;
        right: 5%;
        bottom: 5%;
        left: 5%;
        width: 50%;
        height: 70%;
        margin: auto;     
    }
}

@media screen and (min-width:1000px){
    .descricao{
        width: 50%;
    }
}