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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def wrap_css_lines(css, line_length):
 """Wrap the lines of the given CSS to an approximate length."""


    lines = []
    line_start = 0
    for i, char in enumerate(css):
        # It's safe to break after `}` characters.
        if char == '}' and (i - line_start >= line_length):
            lines.append(css[line_start:i + 1])
            line_start = i + 1

    if line_start < len(css):
        lines.append(css[line_start:])
    return '\n'.join(lines)