css - 如何将文字宽度与动态尺寸图像的宽度匹配？

.parent {
  background: pink;
  display:inline-block;
}

img {
  display: block;
  max-height: 70vh;
}

.description {
  width:0;
  min-width:100%;
}

<div class="parent">
    <img src="https://picsum.photos/id/1004/900/600">
  <div class="description">
    Fusce consequat. Nulla nisl. Nunc nisl. Duis bibendum, felis sed interdum   venenatis, turpis enim blandit mi, in porttitor pede justo eu massa. Donec dapibus. Duis at velit eu est congue elementum.
  </div>
</div>

.parent {
  background: pink;
  display:inline-block;
}

.description {
  width:0;
  min-width:100%;
}

<div class="parent">
   <h2>a title that will define the width</h2>
  <div class="description">
    Fusce consequat. Nulla nisl. Nunc nisl. Duis bibendum, felis sed interdum   venenatis, turpis enim blandit mi, in porttitor pede justo eu massa. Donec dapibus. Duis at velit eu est congue elementum.
  </div>
</div>

.parent {
  background: pink;
  display:inline-block;
}

img {
  display: block;
  max-height: 70vh;
}

.description {
  max-width:calc(70vh * 1.5);
}

<div class="parent">
    <img src="https://picsum.photos/id/1004/900/600">
  <div class="description">
    Fusce consequat. Nulla nisl. Nunc nisl. Duis bibendum, felis sed interdum   venenatis, turpis enim blandit mi, in porttitor pede justo eu massa. Donec dapibus. Duis at velit eu est congue elementum.
  </div>
</div>