WEB APPLICATION : is a software program that runs on a remote server and is accessed through a browser over the internet.Web applications are commonly distributed via a web server.
There are several different tier systems that web applications use to communicate between the web browsers, the client interface, and server data.
*MAJOR COMPONENTS OF WEB APPLICATION : *
- Web Server
- Application Server
- Database
WORKING MODEL OF AN APPLICATION : is a way of developing software where an early version, or prototype, of the product is created and shared with users.
PADDING : is used to create space between the element's content and the element's border. It only affects the content inside the element.
EXAMPLE:
<!DOCTYPE html>
<html>
<head>
<title>Padding Example</title>
<style>
body {
margin: 0;
padding: 20px;
width: 50%;
}
h2 {
color: green;
}
.myDiv {
background-color: lightblue;
border: 2px solid black;
/* Applying padding to each side individually */
padding-top: 80px;
padding-right: 100px;
padding-bottom: 50px;
padding-left: 80px;
}
.inner {
background-color: pink;
border: 2px solid black;
width: 70px;
height: 50px;
display: flex;
align-items: center;
justify-content: center;
}
</style>
</head>
<body>
<div class="myDiv">
<div class="inner">Pad_Box</div>
</div>
</body>
</html>
MARGIN : used to create space outside an element’s border, helping to separate it from other elements on a webpage. They help in organizing the layout and preventing content from appearing too close together.
EXAMPLE:
<html>
<head>
<style>
.box {
margin: 20px ;
}
</style>
</head>
<body>
<div class="box">
This box has a margin of 20px vertically.
</div>
</body>
</html>
TYPES OF ELEMENTS IN HTML:
- Block-Level Elements
- Inline Elements
BLOCK-LEVEL ELEMENTS: it;s starts on a new line, occupy the full available width, stack vertically, and also can contain both block-level and inline elements.
EXAMPLES FOR BLOCK ELEMENTS:
<div>
<p>
<h1></h2>
<ol><ul>
<table>
<section>
<article>
<nav>
<aside>
<header>
<footer>
INLINE ELEMENT: Don't start on a new line, take only the width of their content, and are used within block-level elements to add or style content.
<span>
<a>
<img>
<strong><b>
<em>
<i>
<br>





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