The hook fn doesn't set any styles on either of the prop fns (`getRootProps()`/`getInputProps()`).

### Using inline styles

```jsx harmony
import React, {useMemo} from 'react';
import {useDropzone} from 'react-dropzone';

const baseStyle = {
  width: 200,
  height: 200,
  borderWidth: 2,
  borderColor: '#666',
  borderStyle: 'dashed',
  borderRadius: 5
};

const activeStyle = {
  borderStyle: 'solid',
  borderColor: '#6c6',
  backgroundColor: '#eee'
};

const acceptStyle = {
  borderStyle: 'solid',
  borderColor: '#00e676'
};

const rejectStyle = {
  borderStyle: 'solid',
  borderColor: '#ff1744'
};

function StyledDropzone(props) {
  const {
    getRootProps,
    getInputProps,
    isDragActive,
    isDragAccept,
    isDragReject
  } = useDropzone({accept: 'image/*'});

  const style = useMemo(() => ({
    ...baseStyle,
    ...(isDragActive ? activeStyle : {}),
    ...(isDragAccept ? acceptStyle : {}),
    ...(isDragReject ? rejectStyle : {})
  }), [
    isDragActive,
    isDragReject
  ]);

  return (
    <div {...getRootProps({style})}>
      <input {...getInputProps()} />
      <p>Drag 'n' drop some files here, or click to select files</p>
    </div>
  );
}

<StyledDropzone />
```

### Using styled-components

```jsx harmony
import React from 'react';
import {useDropzone} from 'react-dropzone';
import styled from 'styled-components';

const getColor = (props) => {
  if (props.isDragAccept) {
      return '#00e676';
  }
  if (props.isDragReject) {
      return '#ff1744';
  }
  if (props.isDragActive) {
      return '#6c6';
  }
  return '#666';
}

const Container = styled.div`
  width: 200px;
  height: 200px;
  border-width: 2px;
  border-radius: 5px;
  border-color: ${props => getColor(props)};
  border-style: ${props => props.isDragActive ? 'solid' : 'dashed'};
  background-color: ${props => props.isDragActive ? '#eee' : ''};
`;

function StyledDropzone(props) {
  const {
    getRootProps,
    getInputProps,
    isDragActive,
    isDragAccept,
    isDragReject
  } = useDropzone({accept: 'image/*'});
  
  return (
    <Container {...getRootProps({isDragActive, isDragAccept, isDragReject})}>
      <input {...getInputProps()} />
      <p>Drag 'n' drop some files here, or click to select files</p>
    </Container>
  );
}

<StyledDropzone />
```