CodePen

HTML

            
              <div class="sectionOuterOne">
  <div class="sectionInner">
    <h1>This is a section of the page</h1>
  </div>
</div> 
<div class="sectionOuterTwo">
  <div class="sectionInner">
    <h1>This is another section</h1>
  </div>
</div> 
            
          
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CSS

            
              .sectionOuterOne {
  width: 100%;
  background-color: aliceblue;
  padding 10px;
  margin: 10px;
}
.sectionOuterTwo {
  width: 100%;
  background-color: pink;
  padding 10px;
  margin: 10px;
}

.sectionInner {
  width: 800px;
  margin: 10px auto;
  border: 1px solid grey;
  background-color: white;
}
            
          
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JS

            
              
            
          
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