div.contentA div.messages { background-color: #0e85ff; }
div.contentB div.messages { background-color: #9cff44; }
div.contentC div.messages { background-color: #ff5246; }
div.contentD div.messages { background-color: #ffec45; }

div.messages {
    position: fixed;
    bottom: 0px;
    left: 0px;
    
    float: left;
    clear: both;
    width: 100%;
    height: 20px;
    margin: 0px -20px 0px -20px;
    padding: 4px 20px 4px 20px;
    
    border-radius: 5px;
    cursor: pointer;
}

    div.messages div.point {
        float: left;
        clear: both;
        width: 20px;
        margin: 1px 10px 0px 10px;

        color: #aaaaaa;
        font-size: 16px;
        font-weight: bold;
    }
    div.messages div.message {
        float: left;
        width: 866px;
        margin: 4px 10px 0px 0px;

        text-align: justify;
        color: #000000;
        font-size: 11px;
    }