<div class="container parent">
    <div class="row">
        <div class='col text-center'>
        <input type="radio" name="imgbackground" id="img1" class="d-none imgbgchk" value="">
          <label for="img1">
            <img src="https://dummyimage.com/600x400/000/fff" alt="Image 1">
            <div class="tick_container">
              <div class="tick"><i class="fa fa-check"></i></div>
            </div>
            </label>
        </div>
        <div class='col text-center'>
        <input type="radio" name="imgbackground" id="img2" class="d-none imgbgchk" value="">
          <label for="img2">
            <img src="https://dummyimage.com/600x400/000/fff" alt="Image 2">
            <div class="tick_container">
              <div class="tick"><i class="fa fa-check"></i></div>
            </div>
          </label>
        </div>
        <div class='col text-center'>
        <input type="radio" name="imgbackground" id="img3" class="d-none imgbgchk" value="">
          <label for="img3">
            <img src="https://dummyimage.com/600x400/000/fff" alt="Image 3">
            <div class="tick_container">
              <div class="tick"><i class="fa fa-check"></i></div>
            </div>
          </label>
        </div>
        <div class='col text-center'>
        <input type="radio" name="imgbackground" id="img4" class="d-none imgbgchk" value="">
            <label for="img4">
              <img src="https://dummyimage.com/600x400/000/fff" alt="Image 4">
              <div class="tick_container">
                <div class="tick"><i class="fa fa-check"></i></div>
              </div>
            </label>
        </div>
      </div>
    </div>

html,body{
            min-height: 100vh;
            min-width: 100vw;
        }
        .parent{
            height: 100vh;
        }
        .parent>.row{
            display: flex;
            align-items: center;
            height: 100%;
        }
        .col img{
            height:100px;
            width: 100%;
            cursor: pointer;
            transition: transform 1s;
            object-fit: cover;
        }
        .col label{
            overflow: hidden;
            position: relative;
        }
        .imgbgchk:checked + label>.tick_container{
            opacity: 1;
        }
/*         aNIMATION */
        .imgbgchk:checked + label>img{
            transform: scale(1.25);
            opacity: 0.3;
        }
        .tick_container {
            transition: .5s ease;
            opacity: 0;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            -ms-transform: translate(-50%, -50%);
            cursor: pointer;
            text-align: center;
        }
        .tick {
            background-color: #4CAF50;
            color: white;
            font-size: 16px;
            padding: 6px 12px;
            height: 40px;
            width: 40px;
            border-radius: 100%;
        }