body {
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: #333;
    margin: 0;
}

.container {
    /* padding: 50px; */
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100dvh;
    width: calc(100%-50px);
    /* max-width: 700px; */
    flex-direction: column;
    padding-left: 25px;
    padding-right: 25px;
}

h1 {
    font-size: 1.5rem;
    margin: 5px;
}
@media all and (min-width: 200px)  {  h1  { font-size:1.0rem;  } }
@media all and (min-width: 300px)  {  h1  { font-size:1.2rem;  } }
@media all and (min-width: 400px)  {  h1  { font-size:1.4rem;  } }

p {
    color: #777;
    margin: 0;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

input {
    width: 100%;
    max-width: 700px;
    padding: 15px;
    border-radius: 0px;
    border: 1px solid #777;
    font-size: 0.9rem;
    margin: 10px;
}

button {
    width: 100%;
    max-width: 700px;
    font-size: 1.1rem;
    /* padding: 10px; */
    height: 50px;
    border-radius: 0px;
    border: 0px solid darkorange;
    background-color: orange;
    cursor: pointer;
    font-weight: bold;
    color: #333;
}

button:hover {
    background-color: darkorange;
}