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<!DOCTYPE html>
<html>
<head>
<style>
body {
  background-color:#E7E9EB;
}
#main {
  background-color:#FFFFFF;
  width: 100%;
  height: 300px;
  display: flex;
  align-items: center;
}
#main div {
  flex: 1;
}
#myBlueDiv {
  align-self: flex-start;
}
</style>
</head>
<body>
<h1>The align-self Property</h1>
<div id="main">
  <div style="background-color:coral;">This DIV has little content.</div>
  <div id="myBlueDiv" style="background-color:lightblue;">This DIV has more content and usually this can be a problem when aligning multiple DIV elements.</div>  
  <div style="background-color:lightgreen;">This <br>DIV<br>has<br>many<br>line<br>breaks.</div>
</div>
</body>
</html>