4 в 1

<!doctype html>
<html>
    <head>
        <meta charset="utf-8">
        <meta content="height=device-height, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, user-scalable=no, width=device-width" name="viewport">
        <title>4 в 1</title>
        <link href="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.3.1/css/swiper.min.css" rel="stylesheet">
        <style>
            html, body {
                position: relative;
                height: 100%;
            }

body {
                background: #eee;
                font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
                font-size: 14px;
                color: #000;
                margin: 0;
                padding: 0;
            }

iframe {
                border-width: 0;
            }

.swiper-container {
                width: 100%;
                height: 100%;
            }

.swiper-slide {
                text-align: center;
                font-size: 18px;
                background: #fff;
                display: -webkit-box;
                display: -ms-flexbox;
                display: -webkit-flex;
                display: flex;
                -webkit-box-pack: center;
                -ms-flex-pack: center;
                -webkit-justify-content: center;
                justify-content: center;
                -webkit-box-align: center;
                -ms-flex-align: center;
                -webkit-align-items: center;
                align-items: center;
            }
        </style>
    </head>
    <body>
        <div class="swiper-container">
            <div class="swiper-wrapper">
                <iframe class="swiper-slide" src="http://bymas.ru"></iframe>
                <iframe class="swiper-slide" src="https://masteram.us"></iframe>
                <iframe class="swiper-slide" src="http://profiwm.com"></iframe>
                <iframe class="swiper-slide" src="http://profiwm.ru"></iframe>
            </div>
            <div class="swiper-button-next"></div>
            <div class="swiper-button-prev"></div>
        </div>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/3.3.1/js/swiper.min.js"></script>
        <script>
            var swiper = new Swiper('.swiper-container', {
                nextButton: '.swiper-button-next',
                prevButton: '.swiper-button-prev',
                spaceBetween: 30
            });
        </script>
    </body>
</html>