Always design for the mobile first example

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J | B | A

<!DOCTYPE html>
<html>
<head>
    <title>Media Queries</title>
</head>
<body>
    <style>
        * {
            box-sizing: border-box;
        }

.row:after {
            content: "";
            clear: both;
            display: block;
        }

[class*="col-"] {
            float: left;
            padding: 15px;
        }

html {
            font-family: "Lucida Sans", sans-serif;
        }

.header {
            background-color: #b6ff00;
            color: #ffffff;
            padding: 15px;
        }

.menu ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
        }

.menu li {
            padding: 8px;
            margin-bottom: 7px;
            background-color: #ff004e;
            color: #ffffff;
            box-shadow: 0 2px 2px rgba(0,0,0,0.12), 0 2px 2px rgba(0,0,0,0.24);
        }

.menu li:hover {
                background-color: #000000;
            }

.aside {
            background-color: #ff004e;
            padding: 15px;
            color: #ffffff;
            text-align: center;
            font-size: 14px;
            box-shadow: 0 2px 2px rgba(0,0,0,0.12), 0 2px 1px rgba(0,0,0,0.24);
        }

.footer {
            background-color: #000000;
            color: #ffffff;
            text-align: center;
            font-size: 12px;
            padding: 15px;
        }
        /* For mobile phones: */
        [class*="col-"] {
            width: 100%;
        }

@media only screen and (min-width: 768px) {
            /* For desktop: */
            .col-1 {
                width: 8.33%;
            }

.col-2 {
                width: 16.66%;
            }

.col-3 {
                width: 25%;
            }

.col-4 {
                width: 33.33%;
            }

.col-5 {
                width: 41.66%;
            }

.col-6 {
                width: 50%;
            }

.col-7 {
                width: 58.33%;
            }

.col-8 {
                width: 66.66%;
            }

.col-9 {
                width: 75%;
            }

.col-10 {
                width: 83.33%;
            }

.col-11 {
                width: 91.66%;
            }

.col-12 {
                width: 100%;
            }
        }
    </style>

<div class="header">
        <h1>TechFunda</h1>
    </div>

<div class="col-3 menu">
            <ul>
                <li>Technologies</li>
                <li>Become Author</li>
                <li>Refer & Earn</li>
                <li>Get Knowledge</li>
            </ul>
        </div>

<div class="col-6">
            <h1>Free Tutorials</h1>
            <p>TechFunda is a free e Learning tutorial website abailable in the world wide web as, www.techfunda.com</p>
        </div>

<div class="col-3 right">
            <div class="aside">
                <h2>Benifit?</h2>
                <p>We can learn the Technologies and we can earn the money easily.</p>
                <h2>How?</h2>
                <p>By submitting the technologies what ever we know.</p>
                <h2>Contact</h2>
                <p>You can reach us throus mail ID webmaster@techfunda.com</p>
            </div>
        </div>
    </div>

<div class="footer">
        <p>Resize the browser window to see how the content respond to the resizing.</p>
    </div>
</body>
</html>

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Always Design For The Mobile First

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