* {margin: 0px; padding: 0px;}  //https://m-school.biz/dev/css-coding/036-css-list-grid.htm
#grid {width:600px; height:117px;position: absolute; top: 180px; left:40px;background:#333; width:839px; height:205px; border:5px solid #333;border-radius:0 0 5px px;}
ul {list-style: none; display:inline; display: flex; background:#333; width:1008px; height:119px; border:2px solid #333; border-radius:0 0 5px 5px;}  https://www.webcreatorbox.com/tech/flexbox
li {margin: 0px; list-style: none; display:inline; position:relative;}
.wk {background:#fff; display:block; width:18px; line-height:215px; height:117px; text-align:center;  border:1px solid #999; border-radius:0 0 3px 3px;}
.bk {background:#333; margin-left:-6px; width:11px; height:70px; line-height:115px; color:#fff; text-align:center; border:1px solid #333; float:left; position: absolute; top: 0px; border-radius:0 0 3px 3px;}
.bk2 {background:#333; color:#fff; margin-left:-6px; width:11px; height:70px; line-height:115px; border:1px solid #333; float:left; position: absolute; top: 0px; }

/* firefox */
#grid1 {width:600px; height:30px;}
#gridf {width:600px; height:30px;}
.ww {display:block; width:9px; height:30px; text-align:center; border:1px solid #000; }
.sk {display:block; width:9px; height:30px; text-align:center; border:1px solid #000; background-color:#aff;}
.gr {margin-left:-4px; width:6px; height:15px; background:#ccc; border:1px solid #888; float:left; position: absolute; top: 0px; }
.bb {margin-left:-4px; width:6px; height:15px; background:#000; border:1px solid #000; float:left; position: absolute; top: 0px; }

a {text-decoration: none;}
input[type=text]{width:20px;}
p { position: absolute; top: 10px; left:520px;}

table.tab{border-collapse: collapse;}
table.tab td{border: 1px solid #a0a0a0; padding:2px; vertical-align:middle;}
table.tab td.a a:hover {background-color: #00ffff; text-decoration:none; }

.video-wrapper {width: 640px; max-width: 100%;}
.ifr {position: relative; padding-bottom: 56.25%;padding-top: 15px; height: 0;overflow: hidden; margin-top: 10px; margin-bottom: 10px;}

.fc {background-color: #ffa;}