body{ background-color:palegreen;}
 img{float:none;margin-left:10%;border-radius:1em;max-width:100%;}
 figcaption{ text-align:center;font-size:1.38em;color:darkblue;}
 video{margin-top:3%;margin-left:22%;padding:20px;border:3px double red;background-color:#FAFAD2;border-radius:1em;}
 h2.jl{text-align:center;width:25%;height:5%;padding:0.2%;border:3px double red;margin-left:18%;background-color:yellow;color:#00008B;
 border-radius:1em;font-size:1.38em;margin-top:4%;}
 p.jlb {font-size:20px;text-align:center;color:#00008B;}