border in headers

例句：

1. 1. The company decided to add a border to the report for better readability.
   公司决定在报告的标题中添加边框，以便更好的可读性。
2. 2. The logo was added to the header of the website to make it more professional.
   将标志添加到网站的标题中，使其更具专业性。
3. 3. The teacher asked us to add a border around our worksheets to highlight important information.
   老师要求我们把工作表周围加上边框，以突出重要信息。