// // Forms // ————————————————–
// Normalize non-controls // // Restyle and baseline non-control form elements.
fieldset {
padding: 0; margin: 0; border: 0; // Chrome and Firefox set a `min-width: -webkit-min-content;` on fieldsets, // so we reset that to ensure it behaves more like a standard block element. // See https://github.com/twbs/bootstrap/issues/12359. min-width: 0;
}
legend {
display: block; width: 100%; padding: 0; margin-bottom: @line-height-computed; font-size: (@font-size-base * 1.5); line-height: inherit; color: @legend-color; border: 0; border-bottom: 1px solid @legend-border-color;
}
label {
display: inline-block; margin-bottom: 5px; font-weight: bold;
}
// Normalize form controls // // While most of our form styles require extra classes, some basic normalization // is required to ensure optimum display with or without those classes to better // address browser inconsistencies.
// Override content-box in Normalize (* isn't specific enough) input {
.box-sizing(border-box);
}
// Position radios and checkboxes better input, input {
margin: 4px 0 0; margin-top: 1px \9; /* IE8-9 */ line-height: normal;
}
// Set the height of file controls to match text inputs input {
display: block;
}
// Make range inputs behave like textual form controls input {
display: block; width: 100%;
}
// Make multiple select elements height not fixed select, select {
height: auto;
}
// Focus for file, radio, and checkbox input:focus, input:focus, input:focus {
.tab-focus();
}
// Adjust output element output {
display: block; padding-top: (@padding-base-vertical + 1); font-size: @font-size-base; line-height: @line-height-base; color: @input-color;
}
// Common form controls // // Shared size and type resets for form controls. Apply `.form-control` to any // of the following form controls: // // select // textarea // input // input // input // input // input // input // input // input // input // input // input // input // input // input
.form-control {
display: block; width: 100%; height: @input-height-base; // Make inputs at least the height of their button counterpart (base line-height + padding + border) padding: @padding-base-vertical @padding-base-horizontal; font-size: @font-size-base; line-height: @line-height-base; color: @input-color; background-color: @input-bg; background-image: none; // Reset unusual Firefox-on-Android default style; see https://github.com/necolas/normalize.css/issues/214 border: 1px solid @input-border; border-radius: @input-border-radius; .box-shadow(inset 0 1px 1px rgba(0,0,0,.075)); .transition(~"border-color ease-in-out .15s, box-shadow ease-in-out .15s"); // Customize the `:focus` state to imitate native WebKit styles. .form-control-focus(); // Placeholder .placeholder(); // Disabled and read-only inputs // Note: HTML5 says that controls under a fieldset > legend:first-child won't // be disabled if the fieldset is disabled. Due to implementation difficulty, // we don't honor that edge case; we style them as disabled anyway. &[disabled], &[readonly], fieldset[disabled] & { cursor: not-allowed; background-color: @input-bg-disabled; opacity: 1; // iOS fix for unreadable disabled content } // Reset height for `textarea`s textarea& { height: auto; }
}
// Special styles for iOS date input // // In Mobile Safari, date inputs require a pixel line-height that matches the // given height of the input. input {
line-height: @input-height-base;
}
// Form groups // // Designed to help with the organization and spacing of vertical forms. For // horizontal forms, use the predefined grid classes.
.form-group {
margin-bottom: 15px;
}
// Checkboxes and radios // // Indent the labels to position radios/checkboxes as hanging controls.
.radio, .checkbox {
display: block; min-height: @line-height-computed; // clear the floating input if there is no label text margin-top: 10px; margin-bottom: 10px; padding-left: 20px; label { display: inline; font-weight: normal; cursor: pointer; }
} .radio input, .radio-inline input, .checkbox input, .checkbox-inline input {
float: left; margin-left: -20px;
} .radio + .radio, .checkbox + .checkbox {
margin-top: -5px; // Move up sibling radios or checkboxes for tighter spacing
}
// Radios and checkboxes on same line .radio-inline, .checkbox-inline {
display: inline-block; padding-left: 20px; margin-bottom: 0; vertical-align: middle; font-weight: normal; cursor: pointer;
} .radio-inline + .radio-inline, .checkbox-inline + .checkbox-inline {
margin-top: 0; margin-left: 10px; // space out consecutive inline controls
}
// Apply same disabled cursor tweak as for inputs // // Note: Neither radios nor checkboxes can be readonly. input, input, .radio, .radio-inline, .checkbox, .checkbox-inline {
&[disabled], fieldset[disabled] & { cursor: not-allowed; }
}
// Form control sizing // // Build on `.form-control` with modifier classes to decrease or increase the // height and font-size of form controls.
.input-sm {
.input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @border-radius-small);
}
.input-lg {
.input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @border-radius-large);
}
// Form control feedback states // // Apply contextual and semantic states to individual form controls.
.has-feedback {
// Enable absolute positioning position: relative; // Ensure icons don't overlap text .form-control { padding-right: (@input-height-base * 1.25); } // Feedback icon (requires .glyphicon classes) .form-control-feedback { position: absolute; top: (@line-height-computed + 5); // Height of the `label` and its margin right: 0; display: block; width: @input-height-base; height: @input-height-base; line-height: @input-height-base; text-align: center; }
}
// Feedback states .has-success {
.form-control-validation(@state-success-text; @state-success-text; @state-success-bg);
} .has-warning {
.form-control-validation(@state-warning-text; @state-warning-text; @state-warning-bg);
} .has-error {
.form-control-validation(@state-danger-text; @state-danger-text; @state-danger-bg);
}
// Static form control text // // Apply class to a `p` element to make any string of text align with labels in // a horizontal form layout.
.form-control-static {
margin-bottom: 0; // Remove default margin from `p`
}
// Help text // // Apply to any element you wish to create light text for placement immediately // below a form control. Use for general help, formatting, or instructional text.
.help-block {
display: block; // account for any element using help-block margin-top: 5px; margin-bottom: 10px; color: lighten(@text-color, 25%); // lighten the text some for contrast
}
// Inline forms // // Make forms appear inline(-block) by adding the `.form-inline` class. Inline // forms begin stacked on extra small (mobile) devices and then go inline when // viewports reach <768px. // // Requires wrapping inputs and labels with `.form-group` for proper display of // default HTML form controls and our custom form controls (e.g., input groups). // // Heads up! This is mixin-ed into `.navbar-form` in navbars.less.
.form-inline {
// Kick in the inline @media (min-width: @screen-sm-min) { // Inline-block all the things for "inline" .form-group { display: inline-block; margin-bottom: 0; vertical-align: middle; } // In navbar-form, allow folks to *not* use `.form-group` .form-control { display: inline-block; width: auto; // Prevent labels from stacking above inputs in `.form-group` vertical-align: middle; } .control-label { margin-bottom: 0; vertical-align: middle; } // Remove default margin on radios/checkboxes that were used for stacking, and // then undo the floating of radios and checkboxes to match (which also avoids // a bug in WebKit: https://github.com/twbs/bootstrap/issues/1969). .radio, .checkbox { display: inline-block; margin-top: 0; margin-bottom: 0; padding-left: 0; vertical-align: middle; } .radio input[type="radio"], .checkbox input[type="checkbox"] { float: none; margin-left: 0; } // Validation states // // Reposition the icon because it's now within a grid column and columns have // `position: relative;` on them. Also accounts for the grid gutter padding. .has-feedback .form-control-feedback { top: 0; } }
}
// Horizontal forms // // Horizontal forms are built on grid classes and allow you to create forms with // labels on the left and inputs on the right.
.form-horizontal {
// Consistent vertical alignment of labels, radios, and checkboxes .control-label, .radio, .checkbox, .radio-inline, .checkbox-inline { margin-top: 0; margin-bottom: 0; padding-top: (@padding-base-vertical + 1); // Default padding plus a border } // Account for padding we're adding to ensure the alignment and of help text // and other content below items .radio, .checkbox { min-height: (@line-height-computed + (@padding-base-vertical + 1)); } // Make form groups behave like rows .form-group { .make-row(); } .form-control-static { padding-top: (@padding-base-vertical + 1); } // Only right align form labels here when the columns stop stacking @media (min-width: @screen-sm-min) { .control-label { text-align: right; } } // Validation states // // Reposition the icon because it's now within a grid column and columns have // `position: relative;` on them. Also accounts for the grid gutter padding. .has-feedback .form-control-feedback { top: 0; right: (@grid-gutter-width / 2); }
}