.form_sucesso
{
    background: #CCF7C9;
    border: 1px solid #085603;
    
    display: block; 
    margin-bottom: 10px;
}

.form_erro
{
    background: #FFF4F8;
    border: 1px solid #FF9EBC;
    
    display: block;
    margin-bottom: 10px;
}