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// // 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: 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; max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141) 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[type="search"] { .box-sizing(border-box); } // Position radios and checkboxes better input[type="radio"], input[type="checkbox"] { margin: 4px 0 0; margin-top: 1px \9; // IE8-9 line-height: normal; } input[type="file"] { display: block; } // Make range inputs behave like textual form controls input[type="range"] { display: block; width: 100%; } // Make multiple select elements height not fixed select[multiple], select[size] { height: auto; } // Focus for file, radio, and checkbox input[type="file"]:focus, input[type="radio"]:focus, input[type="checkbox"]: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[type="text"] // input[type="password"] // input[type="datetime"] // input[type="datetime-local"] // input[type="date"] // input[type="month"] // input[type="time"] // input[type="week"] // input[type="number"] // input[type="email"] // input[type="url"] // input[type="search"] // input[type="tel"] // input[type="color"] .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; // Note: This has no effect on <select>s in some browsers, due to the limited stylability of <select>s in CSS. .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(); // Unstyle the caret on `<select>`s in IE10+. &::-ms-expand { border: 0; background-color: transparent; } // Disabled and read-only inputs // // 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] & { background-color: @input-bg-disabled; opacity: 1; // iOS fix for unreadable disabled content; see https://github.com/twbs/bootstrap/issues/11655 } &[disabled], fieldset[disabled] & { cursor: @cursor-disabled; } // Reset height for `textarea`s textarea& { height: auto; } } // Search inputs in iOS // // This overrides the extra rounded corners on search inputs in iOS so that our // `.form-control` class can properly style them. Note that this cannot simply // be added to `.form-control` as it's not specific enough. For details, see // https://github.com/twbs/bootstrap/issues/11586. input[type="search"] { -webkit-appearance: none; } // Special styles for iOS temporal inputs // // In Mobile Safari, setting `display: block` on temporal inputs causes the // text within the input to become vertically misaligned. As a workaround, we // set a pixel line-height that matches the given height of the input, but only // for Safari. See https://bugs.webkit.org/show_bug.cgi?id=139848 // // Note that as of 9.3, iOS doesn't support `week`. @media screen and (-webkit-min-device-pixel-ratio: 0) { input[type="date"], input[type="time"], input[type="datetime-local"], input[type="month"] { &.form-control { line-height: @input-height-base; } &.input-sm, .input-group-sm & { line-height: @input-height-small; } &.input-lg, .input-group-lg & { line-height: @input-height-large; } } } // 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: @form-group-margin-bottom; } // Checkboxes and radios // // Indent the labels to position radios/checkboxes as hanging controls. .radio, .checkbox { position: relative; display: block; margin-top: 10px; margin-bottom: 10px; label { min-height: @line-height-computed; // Ensure the input doesn't jump when there is no text padding-left: 20px; margin-bottom: 0; font-weight: normal; cursor: pointer; } } .radio input[type="radio"], .radio-inline input[type="radio"], .checkbox input[type="checkbox"], .checkbox-inline input[type="checkbox"] { position: absolute; margin-left: -20px; margin-top: 4px \9; } .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 { position: relative; 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 // Some special care is needed because <label>s don't inherit their parent's `cursor`. // // Note: Neither radios nor checkboxes can be readonly. input[type="radio"], input[type="checkbox"] { &[disabled], &.disabled, fieldset[disabled] & { cursor: @cursor-disabled; } } // These classes are used directly on <label>s .radio-inline, .checkbox-inline { &.disabled, fieldset[disabled] & { cursor: @cursor-disabled; } } // These classes are used on elements with <label> descendants .radio, .checkbox { &.disabled, fieldset[disabled] & { label { cursor: @cursor-disabled; } } } // 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 { // Size it appropriately next to real form controls padding-top: (@padding-base-vertical + 1); padding-bottom: (@padding-base-vertical + 1); // Remove default margin from `p` margin-bottom: 0; min-height: (@line-height-computed + @font-size-base); &.input-lg, &.input-sm { padding-left: 0; padding-right: 0; } } // Form control sizing // // Build on `.form-control` with modifier classes to decrease or increase the // height and font-size of form controls. // // The `.form-group-* form-control` variations are sadly duplicated to avoid the // issue documented in https://github.com/twbs/bootstrap/issues/15074. .input-sm { .input-size(@input-height-small; @padding-small-vertical; @padding-small-horizontal; @font-size-small; @line-height-small; @input-border-radius-small); } .form-group-sm { .form-control { height: @input-height-small; padding: @padding-small-vertical @padding-small-horizontal; font-size: @font-size-small; line-height: @line-height-small; border-radius: @input-border-radius-small; } select.form-control { height: @input-height-small; line-height: @input-height-small; } textarea.form-control, select[multiple].form-control { height: auto; } .form-control-static { height: @input-height-small; min-height: (@line-height-computed + @font-size-small); padding: (@padding-small-vertical + 1) @padding-small-horizontal; font-size: @font-size-small; line-height: @line-height-small; } } .input-lg { .input-size(@input-height-large; @padding-large-vertical; @padding-large-horizontal; @font-size-large; @line-height-large; @input-border-radius-large); } .form-group-lg { .form-control { height: @input-height-large; padding: @padding-large-vertical @padding-large-horizontal; font-size: @font-size-large; line-height: @line-height-large; border-radius: @input-border-radius-large; } select.form-control { height: @input-height-large; line-height: @input-height-large; } textarea.form-control, select[multiple].form-control { height: auto; } .form-control-static { height: @input-height-large; min-height: (@line-height-computed + @font-size-large); padding: (@padding-large-vertical + 1) @padding-large-horizontal; font-size: @font-size-large; line-height: @line-height-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: 0; right: 0; z-index: 2; // Ensure icon is above input groups display: block; width: @input-height-base; height: @input-height-base; line-height: @input-height-base; text-align: center; pointer-events: none; } .input-lg + .form-control-feedback, .input-group-lg + .form-control-feedback, .form-group-lg .form-control + .form-control-feedback { width: @input-height-large; height: @input-height-large; line-height: @input-height-large; } .input-sm + .form-control-feedback, .input-group-sm + .form-control-feedback, .form-group-sm .form-control + .form-control-feedback { width: @input-height-small; height: @input-height-small; line-height: @input-height-small; } // 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); } // Reposition feedback icon if input has visible label above .has-feedback label { & ~ .form-control-feedback { top: (@line-height-computed + 5); // Height of the `label` and its margin } &.sr-only ~ .form-control-feedback { top: 0; } } // 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; } // Make static controls behave like regular ones .form-control-static { display: inline-block; } .input-group { display: inline-table; vertical-align: middle; .input-group-addon, .input-group-btn, .form-control { width: auto; } } // Input groups need that 100% width though .input-group > .form-control { width: 100%; } .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. .radio, .checkbox { display: inline-block; margin-top: 0; margin-bottom: 0; vertical-align: middle; label { padding-left: 0; } } .radio input[type="radio"], .checkbox input[type="checkbox"] { position: relative; margin-left: 0; } // Re-override the feedback icon. .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 radios and checkboxes // // Labels also get some reset styles, but that is scoped to a media query below. .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(); } // Reset spacing and right align labels, but scope to media queries so that // labels on narrow viewports stack the same as a default form example. @media (min-width: @screen-sm-min) { .control-label { text-align: right; margin-bottom: 0; padding-top: (@padding-base-vertical + 1); // Default padding plus a border } } // 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 { right: floor((@grid-gutter-width / 2)); } // Form group sizes // // Quick utility class for applying `.input-lg` and `.input-sm` styles to the // inputs and labels within a `.form-group`. .form-group-lg { @media (min-width: @screen-sm-min) { .control-label { padding-top: (@padding-large-vertical + 1); font-size: @font-size-large; } } } .form-group-sm { @media (min-width: @screen-sm-min) { .control-label { padding-top: (@padding-small-vertical + 1); font-size: @font-size-small; } } } }