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forms.less 13.24 KiB
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//
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// Forms
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// --------------------------------------------------
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// Normalize non-controls
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//
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// Restyle and baseline non-control form elements.
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fieldset {
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  padding: 0;
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  margin: 0;
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  border: 0;
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  // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
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  // so we reset that to ensure it behaves more like a standard block element.
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  // See https://github.com/twbs/bootstrap/issues/12359.
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  min-width: 0;
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}
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legend {
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  display: block;
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  width: 100%;
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  padding: 0;
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  margin-bottom: @line-height-computed;
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  font-size: (@font-size-base * 1.5);
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  line-height: inherit;
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  color: @legend-color;
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  border: 0;
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  border-bottom: 1px solid @legend-border-color;
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}
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label {
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  display: inline-block;
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  max-width: 100%; // Force IE8 to wrap long content (see https://github.com/twbs/bootstrap/issues/13141)
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  margin-bottom: 5px;
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  font-weight: bold;
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}
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// Normalize form controls
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//
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// While most of our form styles require extra classes, some basic normalization
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// is required to ensure optimum display with or without those classes to better
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// address browser inconsistencies.
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// Override content-box in Normalize (* isn't specific enough)
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input[type="search"] {
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  .box-sizing(border-box);
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}
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// Position radios and checkboxes better
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input[type="radio"],
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input[type="checkbox"] {
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  margin: 4px 0 0;
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  margin-top: 1px \9; // IE8-9
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  line-height: normal;
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}
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// Set the height of file controls to match text inputs
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input[type="file"] {
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  display: block;
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}
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// Make range inputs behave like textual form controls
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input[type="range"] {
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  display: block;
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  width: 100%;
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}
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// Make multiple select elements height not fixed
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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; .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 // // 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.
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&[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; } } // 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. Since this fucks up everything else, we have to // appropriately reset it for Internet Explorer and the size variations. input[type="date"], input[type="time"], input[type="datetime-local"], input[type="month"] { line-height: @input-height-base; // IE8+ misaligns the text within date inputs, so we reset line-height: @line-height-base ~"\0"; &.input-sm { line-height: @input-height-small; } &.input-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: 15px; } // Checkboxes and radios // // Indent the labels to position radios/checkboxes as hanging controls. .radio, .checkbox { position: relative; display: block;