Build a Tribute Page (bootstrap开发一个简单网页)

目标: 设计一个类似于这个的页面

代码+注释如下:

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="shortcut icon" type="image/x-icon" href="https://static.codepen.io/assets/favicon/favicon-aec34940fbc1a6e787974dcd360f2c6b63348d4b1f4e06c77743096d55480f33.ico" />
<title>CodePen - freeCodeCamp : Build a Tribute Page</title>
<link rel='stylesheet' href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css'>
<style>
  body {
  margin-top: 60px;
}
</style>

</head>
<body translate="no">
<div class="container">
<div class="jumbotron"> 
     <!--jumbotron以增加标题的大小,并为登陆页面内容添加更多的外边距(margin)-->
<div class="row">
<div class="col-xs-12">
<h1 class="text-center">Dr. Norman Borlaug</h1>
<h2 class="text-center"><em>The man who saved a billion lives</em></h2>
<div class="thumbnail"><img src="https://c2.staticflickr.com/4/3689/10613180113_fdf7bcd316_b.jpg">  
    <!--tuumbnail形成缩略图 这会添加四个像素的内边距(padding)和一个灰色的边框。-->
<div class="caption text-center">Dr. Norman Borlaug, third from left, trains biologists in Mexico on how to increase wheat yields - part of his life-long war on hunger.
</div> <!--class="caption" 在图片下面起说明作用-->
</div>
<div class="col-xs-12 col-sm-10 col-sm-offset-1 col-md-8 col-md-offset-2"> 
    <!--超小设备占12/小型占10列 做外边距偏移1/中型占8列 偏移两列-->
<h3>Here's a time line of Dr. Borlaug's life:</h3>
<ul>
<li><strong>1914</strong> - Born in Cresco, Iowa</li>
<li><strong>1933</strong> - Leaves his family's farm to attend the University of Minnesota, thanks to a Depression era program known as the "National Youth Administration"</li>
<li><strong>1935</strong> - Has to stop school and save up more money. Works in the Civilian Conservation Corps, helping starving Americans. "I saw how food changed them", he said. "All of this left scars on me."</li>
<li><strong>1937</strong> - Finishes university and takes a job in the US Forestry Service</li>
<li><strong>1938</strong> - Marries wife of 69 years Margret Gibson. Gets laid off due to budget cuts. Inspired by Elvin Charles Stakman, he returns to school study under Stakman, who teaches him about breeding pest-resistent plants.</li>
<li><strong>1941</strong> - Tries to enroll in the military after the Pearl Harbor attack, but is rejected. Instead, the military asked his lab to work on waterproof glue, DDT to control malaria, disenfectants, and other applied science.</li>
<li><strong>1942</strong> - Receives a Ph.D. in Genetics and Plant Pathology</li>
<li><strong>1944</strong> - Rejects a 100% salary increase from Dupont, leaves behind his pregnant wife, and flies to Mexico to head a new plant pathology program. Over the next 16 years, his team breeds 6,000 different strains of disease resistent wheat - including different varieties for each major climate on Earth.</li>
<li><strong>1945</strong> - Discovers a way to grown wheat twice each season, doubling wheat yields</li>
<li><strong>1953</strong> - crosses a short, sturdy dwarf breed of wheat with a high-yeidling American breed, creating a strain that responds well to fertalizer. It goes on to provide 95% of Mexico's wheat.</li>
<li><strong>1962</strong> - Visits Delhi and brings his high-yielding strains of wheat to the Indian subcontinent in time to help mitigate mass starvation due to a rapidly expanding population</li>
<li><strong>1970</strong> - receives the Nobel Peace Prize</li>
<li><strong>1983</strong> - helps seven African countries dramatically increase their maize and sorghum yields</li>
<li><strong>1984</strong> - becomes a distinguished professor at Texas A&M University</li>
<li><strong>2005</strong> - states "we will have to double the world food supply by 2050." Argues that genetically modified crops are the only way we can meet the demand, as we run out of arable land. Says that GM crops are not inherently dangerous because "we've been genetically modifying plants and animals for a long time. Long before we called it science, people were selecting the best breeds."</li>
<li><strong>2009</strong> - dies at the age of 95.</li>
</ul>
<blockquote>
<p>"Borlaug's life and achievement are testimony to the far-reaching contribution that one man's towering intellect, persistence and scientific vision can make to human peace and progress."</p>
<footer><cite>Indian Prime Minister Manmohan Singh</cite></footer>
</blockquote> <!--footer标签在引用标签内 会变成灰色  cite标签会使字体变为斜体-->
<h3>If you have time, you should read more about this incredible human being on his <a href="https://en.wikipedia.org/wiki/Norman_Borlaug" target="_blank">Wikipedia entry</a>.</h3>
</div>
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</div>
<footer class="text-center">
<hr>
<p>Written and coded by <a href="https://www.freecodecamp.com/quincylarson" target="_blank">Quincy Larson</a>.</p>
</footer>
</div>
</body>
</html>

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