Create a grid with equal sizes for picture frames

I want to have these three images in a grid with equal width inside thier container with 50% width of the screen as this:

.three-image-container {
  display: grid;
  grid-template-columns: auto auto auto;
  grid-gap: 10px;
  width 50%;
}

.img-frame-container {
  border: 5px solid #e8e8e8;
  border-image: linear-gradient(#a8acb180, #aeb1b682);
  box-shadow: 1px 7px 20px 9px rgb(0 0 0 / 75%);
  border-radius: 5px;
  cursor: pointer;
  background: #dfe4ea;
  user-select: none;
  width: 100%;
  height: 100px;
  max-width: 100%;
  box-sizing: border-box;
  object-fit: cover;
  transition: all 0.2s ease;
}

.img-frame {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

<div class="three-image-container">
  <div class="img-frame-container green-frame">
    <img class="img-frame" src="https://images.unsplash.com/photo-1488161628813-04466f872be2?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=464&q=80">
  </div>
  <div class="img-frame-container red-frame">
    <img class="img-frame" src="https://images.unsplash.com/photo-1539571696357-5a69c17a67c6?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=387&q=80">
  </div>
  <div class="img-frame-container red-frame">
    <img class="img-frame" src="https://images.unsplash.com/photo-1583195764036-6dc248ac07d9?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1176&q=80">
  </div>
</div>

How can I have these three with equal width and fixed 100px height.

Note: each picture should cover all of the frame as others no matter what aspect ratio it has...

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