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CSS CSS - Beyond the Basics Working with Media Queries Adaptive Layouts: Narrow Viewports

Posted by Max Reinsch
Max Reinsch
5,740 Points

Width percentages

Why are the width percentages what they are? They're very precise but I don't know exactly why.

@media screen and (min-width: 481px) {
  .col {
    float:left; 
  }
  .main {
    width:65.957446808511%;
  }
  .secondary {
    width:31.914893617021%;
    margin-left:2.127659574468%;
  }
}

2 Answers

adam åslund
PLUS
adam åslund
Courses Plus Student 12,184 Points
adam åslund
adam åslund
Courses Plus Student 12,184 Points

Hi Max, the reason for being precise is to avoid errors.

If you round up at 2 decimals then the code would look like this.

@media screen and (min-width: 481px) {
  .col {
    float:left; 
  }
  .main {
    width:65.96%;
  }
  .secondary {
    width:31.91%;
    margin-left:2.13%;
  }
}

There would have been some width added to .main width and .secondary margin-left. This could make it so that the element get pushed down instead of being in 1row.

Max Reinsch
Max Reinsch
5,740 Points
Max Reinsch
Max Reinsch
5,740 Points

Ah, I just realised it adds up to exactly 100%.

Max Reinsch
Max Reinsch
5,740 Points

D'oh.