@media screen and (max-width: 780px){
    .sub_title{margin-left:20px;margin-right:20px;}
    .question{margin-top:5px;margin-left:30px;margin-right:30px;border-color:rgb(62,119,170);}
    .answer_title{margin-left:20px;margin-right:20px;}
    .answer_text{margin-left:23px;margin-right:23px;}
}