.title-page-qya{
    text-align: center;
    color:  rgb(31,37,158);
    margin: 50px 0;
}
.container-qya{
    border: 1px solid black;
    border-radius: 15px;
    margin: 10px 15%;
    margin-bottom: 10%;
}
.caja-preguntas{
    /*/border: 1px solid black;
    
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;*/
    border-bottom: 1px solid black;
    padding-left: 15px;
}
.caja-preguntas:nth-child(6){
    border-bottom: none;
}
.caja-respuesta{
    display: none;
    transition: display 5s ease; 
}
.caja-respuesta p{
    text-align: justify;
    padding-left: 3%;
    padding-right: 20px;
}

@media only screen and (min-width: 320px) and (max-width: 720px){
    .container-qya{
        width: 90%;
        margin: 20px auto;
    }
    
}