mohammed-io/responsive.html

## responsive.html
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>

    <style>
        body {
            margin: 0;
        }

        .box:nth-child(1) {
            background-color: red;
        }

        .box:nth-child(2) {
            background-color: #0f5fff;
        }

        .box:nth-child(3) {
            background-color: #f54fe2;
        }

        .box {
            background-color: #ae1224;
            margin: -1.99px;
        }

        .container [class*=col-] {
            display: inline-block;
        }


        @media print {
            /* Only apply if it's a printer */
            .box {
                color: pink;
            }
        }

        @media screen and (min-width: 600px) {
            /* Only apply if screen and mid-width= 600px */
            .col-md-4 {
                width: 33.33333333%;
            }
        }

        @media screen and (max-width: 599px) {
            .col-sm-1 {
                width: 16.66666666667%;
            }

            .col-sm-2 {
                width: 33.3333333333%;
            }

        }
    </style>
</head>

<body>
    <div class="container">
        <div class="box col-md-4 col-sm-6">1</div>
        <div class="box col-md-4 col-sm-6">2</div>
        <div class="box col-md-4 col-sm-6">3</div>
        <div class="box col-md-4 col-sm-6">4</div>
    </div>
</body>

</html>
	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>

	<style>
	body {
	margin: 0;
	}

	.box:nth-child(1) {
	background-color: red;
	}

	.box:nth-child(2) {
	background-color: #0f5fff;
	}

	.box:nth-child(3) {
	background-color: #f54fe2;
	}

	.box {
	background-color: #ae1224;
	margin: -1.99px;
	}

	.container [class*=col-] {
	display: inline-block;
	}


	@media print {
	/* Only apply if it's a printer */
	.box {
	color: pink;
	}
	}

	@media screen and (min-width: 600px) {
	/* Only apply if screen and mid-width= 600px */
	.col-md-4 {
	width: 33.33333333%;
	}
	}

	@media screen and (max-width: 599px) {
	.col-sm-1 {
	width: 16.66666666667%;
	}

	.col-sm-2 {
	width: 33.3333333333%;
	}

	}
	</style>
	</head>

	<body>
	<div class="container">
	<div class="box col-md-4 col-sm-6">1</div>
	<div class="box col-md-4 col-sm-6">2</div>
	<div class="box col-md-4 col-sm-6">3</div>
	<div class="box col-md-4 col-sm-6">4</div>
	</div>
	</body>

	</html>