.animali {
    display : flex;
    flex-direction:row;
    margin: 5vw auto;
    align-items: center;
}
.animali div {
    flex: 1;
    width: 100%;
}

.animali .testo p {
    margin-left: 5vw;
    margin-right: 5vw;
   
}
.animali .testo h2 {
    margin-left: 5vw;
    margin-right: 5vw;
    
}
.hero img.responsive {
    width: 100%;
}
.underline::after {
    
    background-color: #323232;

}
.animali:hover .underline::after {
    width: 100%;
}

@media screen and (max-width: 600px) {
    .animali {
        flex-direction: column;
    }
    .animali div {
        width: 85vw;
    }
    .animali .testo p {
        margin-left: 5vw;
        margin-right: 5vw;
        margin-bottom: 5vw;
      
    }
    .animali .testo h2 {
        margin-left: 5vw;
        margin-right: 5vw;
      
    }
}