大图像仍然以最大宽度和高度破坏引导列

Question

I have bootstrap templates that users can use to create displays of images and text, and I earlier added max-width:100% and height:auto to my img css which I thought fixed it for certain large images.

However, If I add a huge image into it it still breaks the container.

I'm trying to make it so that a user can drag an image into this container and the image will fit no matter what.

What am I doing wrong?

img {
      max-width: 100%; 
      height:auto;
      margin:0 auto;
    }
#topLeftContent{
      display:flex;
      justify-content:center;
      align-items:center;
    }
    #bottomLeftContent{
      display:flex;
      justify-content:center;
      align-items:center;
    }
    #rightQtrContent{
      display:flex;
      justify-content:center;
      align-items:center;
    }

<div class="container-fluid my-container d-flex h-100">
   <div class="row middle" id="middle" style="background-image: url();">
    <div class="col-lg-6"  id="leftColumnQtr">
      <div class="row" style="height:50%; padding-bottom: 15px;">
        <div class="col-lg-12" style="height:100%;">
            <div  id="topLeftContent" style=" height: 100%; ">
            </div>
        </div>
      </div>
      <div class="row" style="height:50%; padding-top: 15px;">
        <div class="col-lg-12" style="height:100%;">
            <div id="bottomLeftContent" style=" height: 100%;">
               <img src="https://via.placeholder.com/1500x700">
            </div>
        </div>
      </div>
    </div>
    <div class="col-lg-6" id="rightColumnQtrHalf" >
        <div id="rightQtrContent" style=" height: 100%; ">
        </div>
    </div>
   </div>
</div>

Image

Answer 1

Try to use img-fluid for all image in bootstrap 4. Use can use display:flex for column to align equally.

 .row.middle { background-image: url('https://drinknooma.com/wp-content/uploads/2016/12/placeholder-1170x731.jpg'); background-size: cover; background-position: center; } .row.eqcol div[class^="col-"] { display:flex; }

 <link href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" rel="stylesheet"/> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script> <div class="container-fluid my-container"> <div class="row eqcol middle" id="middle"> <div class="col-lg-6" id="leftColumnQtr"> <div class="row"> <div class="col-lg-12"> <div id="topLeftContent"> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.</p> </div> </div> <div class="col-lg-12"> <div id="bottomLeftContent"> <img class="img-fluid" src="https://via.placeholder.com/1500x700"> </div> </div> </div> </div> <div class="col-lg-6" id="rightColumnQtrHalf" > <div id="rightQtrContent"> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. </p> </div> </div> </div> </div>