<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Doc CalochJs</title>
<style>
body {
margin: 0;
padding: 0;
}
li {
list-style-type: none;
}
.header {
width: 100%;
height: 150px;
text-align: center;
background-color: black;
}
.header .menu {
display: inline-block;
margin: 80px 0 0 0;
color: white;
width: 100%;
}
.header .menu li {
float: left;
display: block;
margin: 0 5px;
}
.header .menu li:hover {
background-color: white;
color: black;
border-radius: 2px;
padding: 0px 3px;
}
.clear {
clear: both;
}
.main {
width: 100%;
min-height: 300px;
}
.main > div {
float: left;
}
.main .left {
display: block;
width: 200px;
text-align: left;
border-right: 1px solid black;
margin-top: 15px;
}
.main .content {
display: block;
width: calc(100% - 220px);
padding: 15px 0 0 15px;
}
.footer {
display: block;
width: 100%;
text-align: center;
background-color: black;
min-height: 50px;
color: white;
}
</style>
</head>
<body>
<div class="header clear">
<ul class="menu">
<li>CoreConcepts</li>
<li>HandsOn</li>
<li>CDN</li>
<li>Contact</li>
</ul>
</div>
<div class="main clear">
<div class="left">
<ul class="submenu">
<li>Theory</li>
<li>Binding</li>
<li>Templating</li>
<li>
events
<ul>
<li>Value Controls</li>
<li>Dataset controls</li>
</ul>
</li>
<li>
Spa
<ul>
<li>Page</li>
<li>Routes</li>
</ul>
</li>
<li>Ajax task and queuing</li>
<li>Refs</li>
<li>Dom By Xpath</li>
</ul>
</div>
<div class="content">illustration</div>
</div>
<div class="footer clear">CopyRight2024@Caloch</div>
</body>
</html>

Demo