img{
    max-width: 5em;

}

@media (max-width:767px) {
    main {
        display: flex;
        flex-direction: column;
        justify-content: left;
        margin-left: 1em;
        margin-right: 1em;
        margin-top: 10em;

    }
}

@media (min-width:768px) {
    main {
        display:flex;
        flex-direction: column;
        justify-content: left;
        margin-left: 25%;
        margin-right: 25%;
        margin-top: 10em;

    }
}

@media (min-width: 992px) {
    main {

    display: flex;
    flex-direction: column;
    justify-content: left;
    margin-left: 25%;
    margin-right: 25%;
    margin-top: 10em;

    }
}

button {
    max-width: 120px;
}