bootstra3 simple cards

card.html

<style>
/* card css */
.card{
    background-color: red;
    margin: 0;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2);
    transition: 0.3s;
    border-radius: 5px; /* 5px rounded corners */

}

.card:hover {
    box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2);
}

.card img{
    width: 100%;
    border-radius: 5px 5px 0 0;
}

.card-content{
    padding: 2px 16px;
}

/* end card css */

</stye>




<div class="col-md-12">
                  <div class="card">
                      <img src="http://placehold.it/300X100" alt="">
                      <div class="card-content">
                            <h3> hello world</h3>
                      </div>
                  </div>
 </div>