#button{
     width:65%;
     margin-top:0; 
     height: 40px; 
     background-color: #156699; 
     font-size: 18px;
    }
    #text{
        width:65%;
    }
@media screen and (max-width: 600px){
     #button{
     width:65%;
     margin-top:0; 
     height: 40px; 
     background-color: #156699; 
     font-size: 18px;
    }
    #text{
        width:65%;
    }
}