.parent {
                        width: 100%;
                        height: 100%;
                        position: absolute;
                        top: 0;
                        left: 0;
                        overflow: auto;
                    }
                    
                    .block {
                        width: 350px;
                        height: 350px;
                        position: absolute;
                        top: 0;
                        right: 0;
                        bottom: 0;
                        left: 0;
                        margin: auto;
                        font-size:18px;
                         
                    }


@media screen and (max-width: 1200px) {

	                 .block {
                        width: 80%;
                        font-size:18px;
                             }
                           
   }