html, body {
    margin: 0;
    padding: 0;
    font-size: 100%;
    font-weight: normal;
    vertical-align: baseline;
    font-family: Helvetica Neue,Helvetica,Arial,sans-serif;
    height: 100%;
}

body {
    background-image: url("../../img/default/textura-azul-fractales-grande.jpg");
    background-size: 100%;
}

.container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.form {
    background-color: white;
    border-radius: 10px;
    width: 340px;
    height: 270px;
    padding: 20px 30px;
    box-shadow: 0 0 15px 6px rgba(0,0,0,.2);
}

.alert-response {
    display: flex;
    justify-content: center;
    align-items: center;
    color: #a94442;
    background-color: #f2dede;
    border-color: #ebccd1;
    border-radius: 10px;
    width: 340px;
    height: 51px;
    padding: 20px 30px;
    box-shadow: 0 0 15px 6px rgba(0,0,0,.2);
    margin-top: 5px;
}

.form > img{
    width: 100%;
}

.form-fields {
    margin-bottom: 15px;
}

.input-group-addon {
    min-width: 3em;
}