<style>

.k-list-card{
    background-color:{{site.data.meng.card.background_color}};
}
.k-container.mdui-card{
    background-color:{{site.data.meng.card.background_color}};
}
.k-friend .mdui-card{
    background-color:{{site.data.meng.card.background_color}};
}
.k-post-media{
   opacity: {{site.data.meng.card.card_img_opacity}};
}

</style>