设置变换后图像的宽度和高度:旋转 [英] set width and height of an image after transform: rotate

问题描述

我有一个宽度为190px，高度为260px的div，我在该div上分配了img标签，当我上传显示该图像之前的图像时，此后我旋转图像，但图像的宽度和高度没有像div那样变化，我已经使用了继承，有关位置和显示的所有内容，但是一点也不好..

i have a div with width: 190px and height: 260px, i assign img tag on that div, when i upload an image that shows how the image before, after that i rotate the image but the width and height of the image didnt change like the div, i have used inherit, everything about position and display, but no good at all..

推荐答案

嘿，

请尝试使用此代码.

var $=jQuery.noConflict();
$(document).ready(function(){
	$('#RotateButton').click(function(){
	   $('.col').toggleClass("afterRot");
	});
});
/* ----- IE Support CSS Script ----- */
var userAgent, ieReg, ie;
userAgent = window.navigator.userAgent;
ieReg = /msie|Trident.*rv[ :]*11\./gi;
ie = ieReg.test(userAgent);
if(ie) {
  $(".col").each(function () {
    var $container = $(this),
        imgUrl = $container.find("img").prop("src");
    if (imgUrl) {
      $container.css("backgroundImage", 'url(' + imgUrl + ')').addClass("custom-object-fit");
    }
  });
}

body { padding: 0; margin: 0; }
.col { position: relative; display: block; width:100vh; height: 100vh; }
.afterRot{ transform: rotate(90deg); object-fit: cover; }
.col img { position: absolute; top: 0; left: 0; right: 0; width: 100%; height: 100%;	object-fit: cover; }
.custom-object-fit { position: relative; background-size: cover; background-position: center center; }
.custom-object-fit img { opacity: 0; }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="mob">
	<button type="button" id="RotateButton"> Rotate </button>
	<div class="col">     
    	<img class="nor" id="rowImg" src="https://cdn-images-1.medium.com/max/1600/1*tSyuv3ZRCfsSD5aXB7v8DQ.png">
    </div>
</div>

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