RTLPlayground/html/style.css

h1, h2 {
  color: #226;
}
ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  width: 12%;
  height: 100%;
  position: fixed;
  overflow: auto;
}

li a {
  background-color: #aaf;
  display: block;
  color: #000;
  padding: 8px 16px;
  text-decoration: none;
}

/* Change the link color on hover */
li a:hover {
  background-color: #226;
  color: white;
}

table, th, td {
  border: 1px solid navy;
  padding: 8px;
}
table {
  border-collapse: collapse;
  width: 60%;
}

td {
  text-align: right;
}

input[type=submit] { padding: 8px 16px;background-color:#aaf;color:#000; margin-bottom: 2em;}
input[type=submit]:hover { background-color: #226; color: white;}
button {padding: 8px; background-color:#99f; color:#000;}
button:hover { background-color: #226; color: white;}

[type=checkbox] { 
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  margin-top: 1em;
}
[type=checkbox] + img {
  cursor: pointer;
  opacity: 0.4;
  padding: 8px;
}
[type=checkbox]:checked + img {
/*  outline: 2px solid #f00;*/
  opacity: 1.0;
}
object {
 margin: 0.5em 0.5em;
}
.cbgroup {
  display: inline-block;
  text-align: center;
}
.cbgroup label {
  display: block;
}