*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
main {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    height: 100vh;
}
h1 {
    color: #2a75b9;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-weight: 300;
    font-size: 20px;
    text-align: center;
    margin-bottom: .4rem;
}
.col__form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 40%;
}
.col__form form input {
    width: 100%;
    margin: .5rem 0;
    padding: .6rem;
    border: 1px solid #d9d9d9;
}
.col__form form button {
    display: block;
    width: 100px;
    height: 30px;
    margin: 0 auto;
    padding: .5rem 1rem;
    background:#2a75b9; 
    color: #fff; 
    border: none;  
    border-radius: 2px;
}

.col__brand {
    display: block;
    width: 60%;
    background: url('fundo--login.jpg') ;
    background-size: cover;
}
@media screen and ( max-width: 700px) {
    .col__form,
    .col__brand 
    {
        width: 100%;
    }
    .col__form {
        height: 50%;
    }
    .col__brand {
        height: 50%;
    }
    .col__form form  {
        padding: 5.rem 1rem;
    }
}