{% if site.data.meng.background.switch == true %} <style> body{

background-image: url({{site.data.meng.background.background_img}});
background-size: cover;
background-position: 50% 50%;
background-attachment: fixed;
background-repeat: no-repeat;

} toc-card{

background-color:transparent;

} toc a{

color: {{site.data.meng.background.text_color}};

} </style>

{% if site.data.meng.background.transparent_header == true %} <style> header{

background-color:rgba(0, 0, 0, 0);
color: {{site.data.meng.background.text_color}};

} </style>

{% endif %} {% if site.data.meng.background.transparent_footer == true %} <style> footer .mdui-card{

color: {{site.data.meng.background.text_color}};
background-color:rgba(0, 0, 0, 0);

} </style> {% endif %} {% endif %}