atom/static/atom-ui/styles/text.less

@import "variables/variables";
@import "ui-variables";
@import "mixins/mixins";

//
// Typography
// --------------------------------------------------

@font-size-h1:            floor((@font-size-base * 2.6)); // ~36px
@font-size-h2:            floor((@font-size-base * 2.15)); // ~30px
@font-size-h3:            ceil((@font-size-base * 1.7)); // ~24px
@font-size-h4:            ceil((@font-size-base * 1.25)); // ~18px
@font-size-h5:            @font-size-base;
@font-size-h6:            ceil((@font-size-base * 0.85)); // ~12px

@headings-font-family:    inherit;
@headings-font-weight:    500;
@headings-line-height:    1.1;
@headings-color:          inherit;

// Mixins
// -------------------------

.text-variant(@type) {
  @text-color-name: "text-color-@{type}";
  @bg-color-name: "background-color-@{type}";

  @text-color: @@text-color-name;
  @bg-color: @@bg-color-name;

  color: @text-color;
  a&:hover,
  a&:focus {
    color: darken(@text-color, 10%);
  }

  code {
    color: @text-color;
    background: fadeout(@bg-color, 80%);
  }

  a, a code {
    text-decoration: underline;
    color: darken(@text-color, 10%);

    &:hover {
      color: darken(@text-color, 15%);
    }
  }
}

.bg-variant(@color) {
  background-color: @color;
  a&:hover,
  a&:focus {
    background-color: darken(@color, 10%);
  }
}

// Headings
// -------------------------

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  font-family: @headings-font-family;
  font-weight: @headings-font-weight;
  line-height: @headings-line-height;
  color: @headings-color;

  small,
  .small {
    font-weight: normal;
    line-height: 1;
    color: @headings-small-color;
  }
}

h1, .h1,
h2, .h2,
h3, .h3 {
  margin-top: @line-height-computed;
  margin-bottom: (@line-height-computed / 2);

  small,
  .small {
    font-size: 65%;
  }
}
h4, .h4,
h5, .h5,
h6, .h6 {
  margin-top: (@line-height-computed / 2);
  margin-bottom: (@line-height-computed / 2);

  small,
  .small {
    font-size: 75%;
  }
}

h1, .h1 { font-size: @font-size-h1; }
h2, .h2 { font-size: @font-size-h2; }
h3, .h3 { font-size: @font-size-h3; }
h4, .h4 { font-size: @font-size-h4; }
h5, .h5 { font-size: @font-size-h5; }
h6, .h6 { font-size: @font-size-h6; }


// Body text
// -------------------------

p {
  margin: 0 0 (@line-height-computed / 2);
}


// Emphasis & misc
// -------------------------

// Ex: (12px small font / 14px base font) * 100% = about 85%
.text-smaller,
small,
.small {
  font-size: floor((100% * @font-size-small / @font-size-base));
}

mark,
.mark {
  background-color: @state-warning-bg;
  padding: .2em;
}

// Alignment
.text-left           { text-align: left; }
.text-right          { text-align: right; }
.text-center         { text-align: center; }
.text-justify        { text-align: justify; }
.text-nowrap         { white-space: nowrap; }

// Transformation
.text-lowercase      { text-transform: lowercase; }
.text-uppercase      { text-transform: uppercase; }
.text-capitalize     { text-transform: capitalize; }

// text-classes
.text-subtle, .text-muted { color: @text-color-subtle; }
.text-highlight           { color: @text-color-highlight; }

// Contextual colors
.text-info, .text-primary { .text-variant(info); }
.text-success             { .text-variant(success); }
.text-warning             { .text-variant(warning); }
.text-error, .text-danger { .text-variant(error); }

// Contextual backgrounds
// For now we'll leave these alongside the text classes until v4 when we can
// safely shift things around (per SemVer rules).
.bg-primary {
  // Given the contrast here, this is the only class to have its color inverted
  // automatically.
  color: #fff;
  .bg-variant(@brand-primary);
}
.bg-success {
  .bg-variant(@state-success-bg);
}
.bg-info {
  .bg-variant(@state-info-bg);
}
.bg-warning {
  .bg-variant(@state-warning-bg);
}
.bg-danger {
  .bg-variant(@state-danger-bg);
}


// Highlight
// -------------------------

.highlight() {
  font-weight: bold;
  border-radius: @component-border-radius;
}

.highlight {
  .highlight();
  color: @text-color-highlight;
  background-color: @background-color-highlight;
}

.highlight-color(@name, @color) {
  .highlight-@{name} {
    .highlight();
    color: #fff;
    background-color: fadeout(@color, 50%);
  }
}

.highlight-color(info,    @background-color-info);
.highlight-color(warning, @background-color-warning);
.highlight-color(error,   @background-color-error);
.highlight-color(success, @background-color-success);


// Lists
// -------------------------

// Unordered and Ordered lists
ul,
ol {
  margin-top: 0;
  margin-bottom: (@line-height-computed / 2);
  ul,
  ol {
    margin-bottom: 0;
  }
}

// Description Lists
dl {
  margin-top: 0; // Remove browser default
  margin-bottom: @line-height-computed;
}
dt,
dd {
  line-height: @line-height-base;
}
dt {
  font-weight: bold;
}
dd {
  margin-left: 0; // Undo browser default
}


// Misc
// -------------------------

// Abbreviations and acronyms
abbr[title],
// Add data-* attribute to help out our tooltip plugin, per https://github.com/twbs/bootstrap/issues/5257
abbr[data-original-title] {
  cursor: help;
  border-bottom: 1px dotted @abbr-border-color;
}

// Blockquotes
blockquote {
  padding: (@line-height-computed / 2) @line-height-computed;
  margin: 0 0 @line-height-computed;
  font-size: @blockquote-font-size;
  border-left: 5px solid @blockquote-border-color;

  p,
  ul,
  ol {
    &:last-child {
      margin-bottom: 0;
    }
  }
}

// Addresses
address {
  margin-bottom: @line-height-computed;
  font-style: normal;
  line-height: @line-height-base;
}