image card in bootstrap code example

Example 1: boostrap card

  

    
Card title
    
Card subtitle
    
Some quick example text to build on the card title and make up the bulk of the card's content.
    Card link
    Another link
  

Example 2: card center in bootstrap

.card {
        margin: 0 auto; /* Added */
        float: none; /* Added */
        margin-bottom: 10px; /* Added */
}