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@bibhas
Forked from tmaiaroto/_baseline.scss
Created January 26, 2018 05:40
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// $base-font-size: 16px; // not sure this ever did anything
$base-line-height: 1.5;
// this value may vary for each font
// unitless value relative to 1em
$cap-height: 0.68;
@mixin baseline($font-size, $scale: 2) {
// rhythm unit
$rhythm: $base-line-height * $font-size / $scale;
// number of rhythm units that can fit the font-size
$lines: ceil(($font-size + 0.001px) / $rhythm);
// calculate the new line-height
$line-height: $rhythm * $lines / $font-size;
// use the results
font-size: $font-size;
line-height: $line-height;
$baseline-distance: ($line-height - $cap-height) / 2;
// METHOD 1
/////////////////
// this method can relatively move down elements you may not want to
// position: relative;
// top: $baseline-distance + em;
// METHOD 2
/////////////////
// if you use this mixin only on elements that have one direction margins
// http://csswizardry.com/2012/06/single-direction-margin-declarations/
// you can use this method with no worries.
// this method assumes the direction is down and the margin is $base-line-height
padding-top: $baseline-distance + em;
margin-bottom: $base-line-height - $baseline-distance + em;
}
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