.b3-container { width: 100%; font-family: Arial, sans-serif; }
        .b3-header { 
            background-color: hotpink; 
            text-align: center; 
            padding: 20px; 
            font-size: 28px; 
            font-weight: bold; 
            text-transform: uppercase;
        }
        .b3-col { 
            width: 33.33%; 
            float: left; 
            padding: 15px; 
            box-sizing: border-box; 
            background-color: #E8EAED; 
            text-align: justify; 
            min-height: 400px; 
            border-right: 2px solid white; 
        }
        .b3-col:last-child { border-right: none; }
        .b3-col h3 { margin-top: 0; font-size: 16px; }
        .b3-col img { width: 100%; height: auto; margin-top: 15px; }
        .b3-footer { 
            clear: both; 
            background-color: #FCC; 
            text-align: center; 
            padding: 15px; 
            font-size: 13px; 
            line-height: 1.5;
        }