<h3 class="heading">Bootstrap Product Grid</h3>
                 <div class="container">
                    <div class="row product">
                        <div class="col-md-4 ">
                          <div class="card">
                            <div class="ccc">
                              <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/1.jpg" class="imw"></p> 
<!--                               <div class="overlay">
                                <div class="text">View Details</div>
                              </div> -->
                            </div>
                            <div class="card-body">
                              <h5  class="text-center">Apple Watch Series 3</h5> 
                              <p  class="text-center">Price: $550.00</p>
                              <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                            </div>
                          </div>
                        </div>
                        <div class="col-md-4">
                           <div class="card">
                            <div class="ccc">
                              <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/2.jpg" class="imw"></p> 
<!--                               <div class="overlay">
                                <div class="text">View Details</div>
                              </div> -->
                            </div>
                            <div class="card-body">
                              <h5  class="text-center">Beat Solo3 Wearless</h5> 
                              <p  class="text-center">Price: $159.99</p>
                              <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                            </div>
                          </div>
                        </div>
                         <div class="col-md-4">
                            <div class="card">
                            <div class="ccc">
                              <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/3.jpg" class="imw"></p> 
<!--                               <div class="overlay">
                                <div class="text">View Details</div>
                              </div> -->
                            </div>
                            <div class="card-body">
                              <h5  class="text-center">Apple MacBook</h5> 
                              <p  class="text-center">Price: $2249.00</p>
                              <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                            </div>
                          </div>
                        </div>
                    </div>
                    <div class="row product">
                      <div class="col-md-4 ">
                         <div class="card">
                          <div class="ccc">
                            <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/4.jpg" class="imw"></p> 
<!--                             <div class="overlay">
                              <div class="text">View Details</div>
                            </div> -->
                          </div>
                          <div class="card-body">
                            <h5  class="text-center">Apple imac</h5> 
                            <p  class="text-center">Price: $1699.99</p>
                            <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                          </div>
                        </div>
                      </div>
                      <div class="col-md-4">
                        <div class="card">
                          <div class="ccc">
                            <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/6.jpg" class="imw"></p> 
<!--                             <div class="overlay">
                              <div class="text">View Details</div>
                            </div> -->
                          </div>
                          <div class="card-body">
                            <h5  class="text-center">Apple ipad Air</h5> 
                            <p  class="text-center">Price: $415.99</p>
                            <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                          </div>
                        </div>
                      </div>
                       <div class="col-md-4">
                         <div class="card">
                          <div class="ccc">
                            <p class="text-center"><img src="https://raw.githubusercontent.com/rxhack/productImage/main/7.jpg" class="imw"></p> 
<!--                             <div class="overlay">
                              <div class="text">View Details</div>
                            </div> -->
                          </div>
                          <div class="card-body">
                            <h5  class="text-center">Apple iphone X</h5> 
                            <p  class="text-center">Price: $1342.00</p>
                            <p class="text-center"><input type="submit" name="Save" value="Buy" class=" cc1"></p>
                          </div>
                        </div>
                      </div>
                  </div>
                 </div>
   
.heading{
    text-align: center;
    margin-top: 20px;
    text-decoration: underline;
}
.imw{
    width: 65%;
    position: relative;
}
.product{
    margin-top: 30px;
    margin-bottom: 30px;
}

.image {
    display: block;
    width: 100%;
    height: auto;
  }
  
  .overlay {
    position: absolute;
    top: 9;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    width: 100%;
    opacity: 0;
    transition: .5s ease;
    background-color: #000;
  }
  
  .ccc:hover .overlay {
    opacity: 0.7;
  }
  
  .text {
    color: white;
    font-size: 20px;
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    text-align: center;
  }
  .cc1{
    width: 82%;
    background: #fff;
    color: #000;
    padding: 4px 8px;
    border: 1px solid #000;
    height: 40px;
    border-radius: 7px;
  }
  @media only screen and (max-width: 553px) {
    .card{
        margin-top: 25px;
    }
  }
  .card{
    border: 1px solid;
    padding: 10px;
    box-shadow: 5px 10px #888888;
  }

External CSS

  1. https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css

External JavaScript

  1. https://code.jquery.com/jquery-3.2.1.slim.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js
  3. https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js