if ratina display

by uto usui

HTML

<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.2/js/bootstrap.min.js"></script>
<h1 class="h1">if ratina display</h1>

	<div class="wrap">
		<div class="inner">
      <div class="box" id="js-box"></div>
		</div>
	</div>

SCSS

body {
	width: 100%;
  min-height: 100vh;
	padding-bottom: 150px;
  background-image: linear-gradient(45deg, #F7CAC9 15%, #91A8D0 85%);
}


.h1 {
  margin: 2em;
  font-family: 'Dancing Script', cursive;
  color: rgba(white, .85);
}

.wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

.inner {
  display: block;
  padding: 2em;
  color: white;
  border: 5px double white;
  background-color: rgba(#fff,.15);
}

JavaScript

var retina = window.devicePixelRatio;
if(retina < 2) {
  $('#js-box').html('Retinaディスプレイとかの高解像度ではないんです。');
} else if(retina >= 2) {
  $('#js-box').html('Retinaディスプレイとかの高解像度です！');
}


WebFontConfig = {
    google: { families: [ 'Dancing+Script:400,700:latin' ] }
  };
  (function() {
    var wf = document.createElement('script');
    wf.src = 'https://ajax.googleapis.com/ajax/libs/webfont/1/webfont.js';
    wf.type = 'text/javascript';
    wf.async = 'true';
    var s = document.getElementsByTagName('script')[0];
    s.parentNode.insertBefore(wf, s);
  })();