.controls>div {
    margin-bottom: 1rem;
}

.preview {
    margin-top: 2rem;
    padding: 1rem;
    background: repeating-linear-gradient(to bottom,
            #fff,
            #fff var(--baseline),
            #ddd var(--baseline),
            #ddd calc(var(--baseline) + 1px));
}

.content-box {
    background: #cce5ff;
    border: 1px solid black;
    padding: var(--space-medium);
    margin: var(--space-medium);
    transition: all 0.3s ease;
    color: var(--color-bg);
    position: relative;
    z-index: 1;

        /* Standardmäßig kein Schatten */
            box-shadow: inset 0 0 0 0 rgba(255, 0, 0, 0.2);
}

textarea {
    width: 100%;
    height: 150px;
    margin-top: 1rem;
    font-family: monospace;
}

.unit-explainer {
    margin-top: 3rem;
    border: 1px solid whitesmoke;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
}

.unit-box {
    margin-bottom: 2rem;
    border: 1px solid whitesmoke;
    border-radius: 5px;
    padding: 0.3rem;
}

.example-box {
    background: #e0e0e0;
    margin-bottom: 0.5rem;
    text-align: center;
    padding: 1rem;
    border-radius: 4px;
    color: var(--color-bg);
}

/* px */
.px-example .example-box {
    font-size: 16px;
    width: 200px;
    height: 100px;
    padding: 16px;
}

/* em */
.em-example {
    font-size: 20px;
}

.em-example .example-box {
    font-size: 1em;
    width: 10em;
    height: 5em;
    padding: 1em;
}

/* rem */
.rem-example {
    font-size: 14px;
}

.rem-example .example-box {
    font-size: 1rem;
    width: 10rem;
    height: 5rem;
    padding: 1rem;
}