.mgr {
    margin: 10px 0;
}

.mrg-2 {
    margin: 2px 0;
}

form {
    width: 50%;
    margin: 0;
    max-width: 600px;
}

.wrapp {
    width: 70%;
    margin: 10px auto;
    max-width: 600px;
}

ul {
    list-style-type: none;
    width: 100%;
    text-align: left;
}

    ul li {
        color: darkred;
    }

.hidden {
    visibility: hidden;
}

@media only screen and (max-width: 600px) {
    .wrapp {
        width: 100% !important;
        max-width: 100% !important;
       min-width:100% !important;
    }
}