input {
    font-size: 24px;
    color: white;
    border: solid rgba(255, 255, 255, 0) 3px;
    border-radius: 10px;
    padding: 5px;
    box-sizing: border-box;
    background-color: rgba(255, 255, 255, 0.3);
    outline: none;
    transition: border-color 0.3s ease;
}
button {
    font-size: 20px;
    background-color: #4e3965;
    color: white;
    border: 4px solid #4e3965;
    border-radius: 20px;
    padding: 3px 20px;
    height: 40px;
}
button:hover {
    background-color: #2d203a;
}
.m20{
    margin-top: 20px;
}
h1 {
    text-align: center;
    border-bottom: #aaa solid 3px;
    font-family: 'Segoe UI', 'Verdana', sans-serif;
    font-size: 24px;
    font-weight: 300;
}
input:focus {
    border: solid rgba(255, 255, 255, 0.75) 3px;
}
.b1 {
    margin-bottom: 1px;
}

.outer-container {
  display: flex; height: unset; justify-content: center; align-items: center; text-align: center;
}
.container {
  display: block;
}

@media screen and (min-width: 900px) {
    .container {
      display: flex;
    }
    .outer-container {
      height: 100vh;
    }
}