PHP 不显示 div 的背景

Question

I´m trying to display a background of a div in PHP using echo, but the background doesn´t display

This is the PHP part:

    if($_GET['success'] == 1) {
        echo "<div class=\"form-result success\">Odeslání proběhlo v pořádku</div>";
    };

    if($_GET['success'] == -1) {
        echo "<div class=\"form-result error\">Chyba při odeslání. Zkuste to znovu.</div>";
    };

    ?>

This is the CSS part:

.form-result {
    width: 80%;
    margin: 0 auto;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 7px;
}

.success {
    background-color: #2d8c33;
}

.error {    
    background-color: rgb(185, 9, 9);
}

Thank you for help

Answer 1

I tried your code and its perfectly working fine. If you get the correct data in $_GET['success'] . please, check the data you received in $_GET['success'] .