在Symfony的CSS文件中使用PHP变量

<div style="background-color: <?php echo $color; ?>">Content</div>

<div class="color-<?php echo $color; ?>">Content</div>

.color-red {
    background-color: red;
}

.color-blue {
    background-color: blue;
}

    var color = "<?php echo $color; ?>";
    document.getElementById("myElement").style.backgroundColor = color;
</script>