* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.container {
    max-width: 1000px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.container h2 {
    margin: 20px 0;
}
.form-control {
    width: 50%;
    margin-bottom: 20px;
}
.txt {
    width: 100%;
    background: #f2f2f2;
    outline: none;
    border: none;
    padding: 10px;
    border-radius: 10px;
    font-size: 1rem;
}