html, body {
    margin: 0;
    width: 100%;
    height: 100%;
}

.cont {
    width: 100%;
    height: 100%;

    display: flex;

    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.txt {
    font-weight: bolder;
    font-size: xx-large;
}

ul {
    list-style-type: none;
    margin-top: 24px;
    padding: 0;
}