.body {
                margin:0;
            }
            .title {
               width:100%;
                clear:both;
                background-color: red;
                padding: 2em;
                color: #fff;
            }
            .leftDiv{
                width: 30%;
                background-color: blueviolet;
                float: left;
            }
            .rightDiv{
                width: 70%;
                background-color: blue;
                float: right;
            }
            
            @media screen and (max-width: 768px) {
                .leftDiv {
                    width: 100%;
                    font-size: 1.2em;
                }
                .rightDiv {
                    width:100%;
                    font-size: 1.2em;
                }
            }
            }