less/bootstrap/buttons.less

   1 //
   2 // Buttons
   3 // --------------------------------------------------
   4
   5
   6 // Base styles
   7 // --------------------------------------------------
   8
   9 .btn {
  10   display: inline-block;
  11   margin-bottom: 0; // For input.btn
  12   font-weight: @btn-font-weight;
  13   text-align: center;
  14   vertical-align: middle;
  15   touch-action: manipulation;
  16   cursor: pointer;
  17   background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214
  18   border: 1px solid transparent;
  19   white-space: nowrap;
  20   .button-size(@padding-base-vertical; @padding-base-horizontal; @font-size-base; @line-height-base; @btn-border-radius-base);
  21   .user-select(none);
  22
  23   &,
  24   &:active,
  25   &.active {
  26     &:focus,
  27     &.focus {
  28       .tab-focus();
  29     }
  30   }
  31
  32   &:hover,
  33   &:focus,
  34   &.focus {
  35     color: @btn-default-color;
  36     text-decoration: none;
  37   }
  38
  39   &:active,
  40   &.active {
  41     outline: 0;
  42     background-image: none;
  43     .box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
  44   }
  45
  46   &.disabled,
  47   &[disabled],
  48   fieldset[disabled] & {
  49     cursor: @cursor-disabled;
  50     .opacity(.65);
  51     .box-shadow(none);
  52   }
  53
  54   a& {
  55     &.disabled,
  56     fieldset[disabled] & {
  57       pointer-events: none; // Future-proof disabling of clicks on `<a>` elements
  58     }
  59   }
  60 }
  61
  62
  63 // Alternate buttons
  64 // --------------------------------------------------
  65
  66 .btn-default {
  67   .button-variant(@btn-default-color; @btn-default-bg; @btn-default-border);
  68 }
  69 .btn-primary {
  70   .button-variant(@btn-primary-color; @btn-primary-bg; @btn-primary-border);
  71 }
  72 // Success appears as green
  73 .btn-success {
  74   .button-variant(@btn-success-color; @btn-success-bg; @btn-success-border);
  75 }
  76 // Info appears as blue-green
  77 .btn-info {
  78   .button-variant(@btn-info-color; @btn-info-bg; @btn-info-border);
  79 }
  80 // Warning appears as orange
  81 .btn-warning {
  82   .button-variant(@btn-warning-color; @btn-warning-bg; @btn-warning-border);
  83 }
  84 // Danger and error appear as red
  85 .btn-danger {
  86   .button-variant(@btn-danger-color; @btn-danger-bg; @btn-danger-border);
  87 }
  88
  89
  90 // Link buttons
  91 // -------------------------
  92
  93 // Make a button look and behave like a link
  94 .btn-link {
  95   color: @link-color;
  96   font-weight: normal;
  97   border-radius: 0;
  98
  99   &,
 100   &:active,
 101   &.active,
 102   &[disabled],
 103   fieldset[disabled] & {
 104     background-color: transparent;
 105     .box-shadow(none);
 106   }
 107   &,
 108   &:hover,
 109   &:focus,
 110   &:active {
 111     border-color: transparent;
 112   }
 113   &:hover,
 114   &:focus {
 115     color: @link-hover-color;
 116     text-decoration: @link-hover-decoration;
 117     background-color: transparent;
 118   }
 119   &[disabled],
 120   fieldset[disabled] & {
 121     &:hover,
 122     &:focus {
 123       color: @btn-link-disabled-color;
 124       text-decoration: none;
 125     }
 126   }
 127 }
 128
 129
 130 // Button Sizes
 131 // --------------------------------------------------
 132
 133 .btn-lg {
 134   // line-height: ensure even-numbered height of button next to large input
 135   .button-size(@padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @btn-border-radius-large);
 136 }
 137 .btn-sm {
 138   // line-height: ensure proper height of button next to small input
 139   .button-size(@padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @btn-border-radius-small);
 140 }
 141 .btn-xs {
 142   .button-size(@padding-xs-vertical; @padding-xs-horizontal; @font-size-small; @line-height-small; @btn-border-radius-small);
 143 }
 144
 145
 146 // Block button
 147 // --------------------------------------------------
 148
 149 .btn-block {
 150   display: block;
 151   width: 100%;
 152 }
 153
 154 // Vertically space out multiple block buttons
 155 .btn-block + .btn-block {
 156   margin-top: 5px;
 157 }
 158
 159 // Specificity overrides
 160 input[type="submit"],
 161 input[type="reset"],
 162 input[type="button"] {
 163   &.btn-block {
 164     width: 100%;
 165   }
 166 }