.header {
    height: 52px;
}

.header h2 {
    margin: 0;
    text-align: center;
}

.content {
    flex: 1;
    padding-left: 2em;
}

textarea {
    resize: none;
    height: 500px;
    width: 100%;
}

.toolbar button {
    width: 25px;
    height: 25px;
    cursor: pointer;
}

.copy-button {
    background-color: green;
    padding: 1em;
    color: white;
    border-radius: 10px;
    cursor: pointer;
}

.flash-message {
    position: absolute;
    margin: auto;
    left: 0;
    right: 0;
    text-align: center;
    max-width: 200px;
    padding: 2em;
    background-color: yellow;
    z-index: 100;
    border-radius: 10px;
}