iframe {
    border: 0;
    outline: none;
}

form {
    padding: 5px;
    border: 1px solid #ddd;
}

fieldset {
    border: 0;
}

.field {
    margin: 5px 0;
}

input[type="text"] {
    display: block;
    width: 100%;
    padding: 1px;
}

button#submit {
    display: block;
    padding: 5px;
    margin: 5px 0;
}

button#submit:hover {
    cursor: pointer;
}

.flex-wrapper {
    display: flex;
    width: 100%;
}

.flex-wrapper > div:first-child {
    font-size: 80%;
    line-height: normal;
}

.flex-wrapper > div {
    width: 50%;
    padding: 5px;
    border: 1px solid #ddd;
    margin: 5px;
}

#pre,
#data {
    background: #ddd;
}