.preview-img {
  height: 100px;
  width: auto;
  margin: 5px;
  object-fit: cover;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.watermark-controls {
  margin: 16px 0;
  padding: 10px;
  background: #f7f7f7;
  border-radius: 6px;
  border: 1px solid #ddd;
  max-width: 350px;
}
.watermark-controls label {
  margin-right: 6px;
}
.watermark-controls input[type='range'] {
  width: 100px;
}
.watermark-controls h3 {
  margin-top: 0;
  font-size: 1.1em;
}
.output-controls {
  margin: 16px 0;
  padding: 10px;
  background: #f7f7f7;
  border-radius: 6px;
  border: 1px solid #ddd;
  max-width: 350px;
}
.output-controls label {
  margin-right: 6px;
}
.output-controls input[type='number'] {
  margin-right: 10px;
}
.output-controls h3 {
  margin-top: 0;
  font-size: 1.1em;
} 
body {
  font-family: 'Roboto', sans-serif;
}