.form-login{
    width: 300px;
    margin: 0 auto;
}

body{
	background: linear-gradient(to right, #E0EEEE, #FFFFF0, #E0EEEE);
}
.captcha{
    width: 100%;
	height: 40px;
	background: #e0e0e0;
    text-align: center;
    line-height: 40px;
    margin-top: 10px;
    font-size: 23px;
    color: rgba(0,0,0,.2);
    text-shadow: 2px 2px;
    font-style: italic;
    letter-spacing: 9px;
    border: 1px solid #cccccc;
    border-radius: 5px 5px 5px ;
    float: left;
}
.mostrar-captcha{
    display: none;
}

@media (max-width: 750px) {
    .form-login{
        width: 100%;
    }

}