com, Barnes amp; Noble, and Half Price Books.

I am looking for someone to help me contast Amazon.com, Barnes & Noble, and Half Price Books. I have attached what I thought Contrasting between the three are, however not sure I have done this right.I am week 5 in BIS/219.The assignemnt is:Where did you find that book? My portion; contrast the web sites of three book stores.

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background-color: #4CAF50;
border: none;
color: white;
padding: 10px 20px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin: 4px 2px;
cursor: pointer;
border-radius: 10px;
}
.awasam-alert {
color: red;
}

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