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lyear_utilities_sizing.html

<!DOCTYPE html>
<html lang="zh">
<head>
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<meta name="keywords" content="LightYear,LightYearAdmin,光年,后台模板,后台管理系统,光年HTML模板">
<meta name="description" content="Light Year Admin V5是一个基于Bootstrap v5.1.3的后台管理系统的HTML模板。">
<title>尺寸 - 光年(Light Year Admin V5)后台管理系统模板</title>
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</head>

<body>
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<div id="lyear-preloader" class="loading">
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    <div class="round_spinner">
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</div>
<!--页面loading end-->
<div class="lyear-layout-web">
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    <!--左侧导航-->
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      <!-- logo -->
      <div id="logo" class="sidebar-header">
        <a href="index.html"><img src="images/logo-sidebar.png" title="LightYear" alt="LightYear" /></a>
      </div>
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        <nav class="sidebar-main">

          <ul class="nav-drawer">
            <li class="nav-item">
              <a href="index.html">
                <i class="mdi mdi-home-city-outline"></i>
                <span>后台首页</span>
              </a>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-television-guide"></i>
                <span>布局</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_layout_break_point.html">拐点</a> </li>
                <li> <a href="lyear_layout_containers.html">容器</a> </li>
                <li> <a href="lyear_layout_grid.html">栅格</a> </li>
                <li> <a href="lyear_layout_columns.html">列</a> </li>
                <li> <a href="lyear_layout_gutters.html">沟槽</a> </li>
                <li> <a href="lyear_layout_utilities.html">实用程序</a> </li>
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                <span>页面内容</span>
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                <li> <a href="lyear_content_typography.html">排版</a> </li>
                <li> <a href="lyear_content_images.html">图片</a> </li>
                <li> <a href="lyear_content_tables.html">表格</a> </li>
                <li> <a href="lyear_content_figures.html">画像</a> </li>
              </ul>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-map-outline"></i>
                <span>表单</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_forms_overview.html">概述</a> </li>
                <li> <a href="lyear_forms_control.html">表单控件</a> </li>
                <li> <a href="lyear_forms_select.html">下拉选择</a> </li>
                <li> <a href="lyear_forms_radio.html">单选框</a> </li>
                <li> <a href="lyear_forms_checkbox.html">复选框</a> </li>
                <li> <a href="lyear_forms_switch.html">开关</a> </li>
                <li> <a href="lyear_forms_range.html">范围</a> </li>
                <li> <a href="lyear_forms_input_group.html">输入组</a> </li>
                <li> <a href="lyear_forms_floating_labels.html">浮动标签</a> </li>
                <li> <a href="lyear_forms_layout.html">布局</a> </li>
                <li> <a href="lyear_forms_validation.html">验证</a> </li>
              </ul>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-tune"></i>
                <span>组件</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_components_accordion.html">手风琴菜单</a> </li>
                <li> <a href="lyear_components_alerts.html">警告框</a> </li>
                <li> <a href="lyear_components_badge.html">徽章</a> </li>
                <li> <a href="lyear_components_breadcrumb.html">面包屑导航</a> </li>
                <li> <a href="lyear_components_buttons.html">按钮</a> </li>
                <li> <a href="lyear_components_button_group.html">按钮组</a> </li>
                <li> <a href="lyear_components_card.html">卡片</a> </li>
                <li> <a href="lyear_components_carousel.html">轮播</a> </li>
                <li> <a href="lyear_components_close_button.html">关闭按钮</a> </li>
                <li> <a href="lyear_components_collapse.html">折叠</a> </li>
                <li> <a href="lyear_components_dropdowns.html">下拉菜单</a> </li>
                <li> <a href="lyear_components_list_group.html">列表组</a> </li>
                <li> <a href="lyear_components_modal.html">模态框</a> </li>
                <li> <a href="lyear_components_navs_tabs.html">导航 &amp; 标签页</a> </li>
                <li> <a href="lyear_components_navbar.html">导航栏</a> </li>
                <li> <a href="lyear_components_offcanvas.html">滑动容器</a> </li>
                <li> <a href="lyear_components_pagination.html">分页</a> </li>
                <li> <a href="lyear_components_placeholders.html">占位符</a> </li>
                <li> <a href="lyear_components_popovers.html">POP提示</a> </li>
                <li> <a href="lyear_components_progress.html">进度条</a> </li>
                <li> <a href="lyear_components_scrollspy.html">滚动监听</a> </li>
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                <li> <a href="lyear_components_tooltips.html">工具提示</a> </li>
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              <a href="javascript:void(0)">
                <i class="mdi mdi-card-bulleted-outline"></i>
                <span>助手</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_helpers_clearfix.html">清除浮动</a> </li>
                <li> <a href="lyear_helpers_colored_links.html">彩色链接</a> </li>
                <li> <a href="lyear_helpers_ratio.html">比例</a> </li>
                <li> <a href="lyear_helpers_position.html">定位</a> </li>
                <li> <a href="lyear_helpers_stacks.html">堆叠</a> </li>
                <li> <a href="lyear_helpers_visually_hidden.html">视觉隐藏</a> </li>
                <li> <a href="lyear_helpers_stretched_link.html">延伸链接</a> </li>
                <li> <a href="lyear_helpers_text_truncation.html">文本截断</a> </li>
                <li> <a href="lyear_helpers_vertical_rule.html">垂直法则</a> </li>
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            <li class="nav-item nav-item-has-subnav active open">
              <a href="javascript:void(0)">
                <i class="mdi mdi-map-search-outline"></i>
                <span>工具类</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_utilities_background.html">背景</a> </li>
                <li> <a href="lyear_utilities_borders.html">边框</a> </li>
                <li> <a href="lyear_utilities_colors.html">颜色</a> </li>
                <li> <a href="lyear_utilities_display.html">显示属性</a> </li>
                <li> <a href="lyear_utilities_flex.html">弹性布局</a> </li>
                <li> <a href="lyear_utilities_float.html">浮动</a> </li>
                <li> <a href="lyear_utilities_interactions.html">交互</a> </li>
                <li> <a href="lyear_utilities_opacity.html">透明度</a> </li>
                <li> <a href="lyear_utilities_overflow.html">溢出处理</a> </li>
                <li> <a href="lyear_utilities_position.html">定位</a> </li>
                <li> <a href="lyear_utilities_shadows.html">阴影</a> </li>
                <li class="active"> <a href="lyear_utilities_sizing.html">尺寸</a> </li>
                <li> <a href="lyear_utilities_spacing.html">间距</a> </li>
                <li> <a href="lyear_utilities_text.html">文本</a> </li>
                <li> <a href="lyear_utilities_vertical_align.html">垂直对齐</a> </li>
                <li> <a href="lyear_utilities_visibility.html">可见性</a> </li>
              </ul>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-stove"></i>
                <span>示例页面</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_pages_doc.html">文档列表</a> </li>
                <li> <a href="lyear_pages_table.html">表格插件</a> </li>
                <li> <a href="lyear_pages_gallery.html">图库列表</a> </li>
                <li> <a href="lyear_pages_config.html">网站配置</a> </li>
                <li> <a href="lyear_pages_rabc.html">设置权限</a> </li>
                <li> <a href="lyear_pages_add_doc.html">新增文档</a> </li>
                <li> <a href="lyear_pages_login_1.html" target="_blank">登录页面1</a> </li>
                <li> <a href="lyear_pages_login_2.html" target="_blank">登录页面2</a> </li>
                <li> <a href="lyear_pages_login_3.html" target="_blank">登录页面3</a> </li>
                <li> <a href="lyear_pages_login_4.html" target="_blank">登录页面4</a> </li>
                <li> <a href="lyear_pages_error.html">错误页面</a> </li>
              </ul>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-card-text-outline"></i>
                <span>其他内容</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_other_icons.html">图标</a> </li>
              </ul>
            </li>
            <li class="nav-item nav-item-has-subnav">
              <a href="javascript:void(0)">
                <i class="mdi mdi-file-code-outline"></i>
                <span>JS 插件</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="lyear_pages_guide.html">表单向导</a> </li>
                <li> <a href="lyear_js_datepicker.html">日期选取器</a> </li>
                <li> <a href="lyear_js_colorpicker.html">选色器</a> </li>
                <li> <a href="lyear_js_chartjs.html">Chart.js</a> </li>
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                <li> <a href="lyear_js_tags_input.html">标签插件</a> </li>
                <li> <a href="lyear_js_notify.html">通知消息</a> </li>
                <li> <a href="lyear_js_maxlength.html">长度判断</a> </li>
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              </ul>
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              <a href="javascript:void(0)">
                <i class="mdi mdi-folder-text-outline"></i>
                <span>多级菜单</span>
              </a>
              <ul class="nav nav-subnav">
                <li> <a href="#!">一级菜单</a> </li>
                <li class="nav-item nav-item-has-subnav">
                  <a href="#!">一级菜单</a>
                  <ul class="nav nav-subnav">
                    <li> <a href="#!">二级菜单</a> </li>
                    <li class="nav-item nav-item-has-subnav">
                      <a href="#!">二级菜单</a>
                      <ul class="nav nav-subnav">
                        <li> <a href="#!">三级菜单</a> </li>
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                      </ul>
                    </li>
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                <li> <a href="#!">一级菜单</a> </li>
              </ul>
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          </ul>
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        <div class="sidebar-footer">
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                  <input class="form-check-input" type="radio" name="site_theme" id="site_theme_7" value="translucent-cyan">
                  <label class="form-check-label" for="site_theme_7"></label>
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                  <input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_7" value="color_7">
                  <label class="form-check-label" for="logo_bg_7"></label>
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                  <input class="form-check-input" type="radio" name="logo_bg" id="logo_bg_8" value="color_8">
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			  <li class="lyear-skin-title"><p>头部</p></li>
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                  <input class="form-check-input" type="radio" name="header_bg" id="header_bg_8" value="color_8">
                  <label class="form-check-label" for="header_bg_8"></label>
                </div>
			  </li>
			  <li class="lyear-skin-title"><p>侧边栏</p></li>
			  <li class="lyear-skin-li clearfix">
                <div class="form-check form-check-inline">
                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_1" value="default" checked="checked">
                  <label class="form-check-label" for="sidebar_bg_1"></label>
                </div>
                <div class="form-check form-check-inline">
                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_2" value="color_2">
                  <label class="form-check-label" for="sidebar_bg_2"></label>
                </div>
                <div class="form-check form-check-inline">
                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_3" value="color_3">
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                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_5" value="color_5">
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                </div>
                <div class="form-check form-check-inline">
                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_6" value="color_6">
                  <label class="form-check-label" for="sidebar_bg_6"></label>
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                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_7" value="color_7">
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                  <input class="form-check-input" type="radio" name="sidebar_bg" id="sidebar_bg_8" value="color_8">
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      <div class="container-fluid">

        <div class="row">

          <div class="col-lg-12">
            <div class="card">
              <header class="card-header"><div class="card-title">尺寸</div></header>
              <div class="card-body">

                <p>利用宽度（width）和高度（height）相关的工具类来轻松实现对页面元素的高度和宽度的设定。</p>
                <h6>相对于父元素的尺寸</h6>
                <p>宽度（Width）和高度（height）工具类是通过 <code>_utilities.scss</code> 文件中的工具类 API 生成的。默认情况下支持 <code>25%</code>、<code>50%</code>、<code>75%</code>、<code>100%</code> 和 <code>auto</code> 值。根据你的需要修改这些值，就可以生成不同的工具类。</p>
                <div class="border-example">
                  <div class="w-25 p-3" style="background-color: #eee;">25% 的宽度</div>
                  <div class="w-50 p-3" style="background-color: #eee;">50% 的宽度</div>
                  <div class="w-75 p-3" style="background-color: #eee;">75% 的宽度</div>
                  <div class="w-100 p-3" style="background-color: #eee;">100% 的宽度</div>
                  <div class="w-auto p-3" style="background-color: #eee;">Width auto</div>
                </div>
                <pre>&lt;div class="w-25 p-3" style="background-color: #eee;"&gt;25% 的宽度&lt;/div&gt;
      &lt;div class="w-50 p-3" style="background-color: #eee;"&gt;50% 的宽度&lt;/div&gt;
      &lt;div class="w-75 p-3" style="background-color: #eee;"&gt;75% 的宽度&lt;/div&gt;
      &lt;div class="w-100 p-3" style="background-color: #eee;"&gt;100% 的宽度&lt;/div&gt;
      &lt;div class="w-auto p-3" style="background-color: #eee;"&gt;Width auto&lt;/div&gt;</pre>

                <div class="border-example">
                  <div style="height: 100px; background-color: rgba(255,0,0,0.1);">
                    <div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">高度 25%</div>
                    <div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">高度 50%</div>
                    <div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">高度 75%</div>
                    <div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">高度 100%</div>
                    <div class="h-auto d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)">高度 auto</div>
                  </div>
                </div>
                <pre>&lt;div style="height: 100px; background-color: rgba(255,0,0,0.1);"&gt;
        &lt;div class="h-25 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)"&gt;高度 25%&lt;/div&gt;
        &lt;div class="h-50 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)"&gt;高度 50%&lt;/div&gt;
        &lt;div class="h-75 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)"&gt;高度 75%&lt;/div&gt;
        &lt;div class="h-100 d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)"&gt;高度 100%&lt;/div&gt;
        &lt;div class="h-auto d-inline-block" style="width: 120px; background-color: rgba(0,0,255,.1)"&gt;高度 auto&lt;/div&gt;
      &lt;/div&gt;</pre>

                <p>如果需要，你也可以使用 <code>max-width: 100%;</code> 和 <code>max-height: 100%;</code> 工具类</p>
                <div class="border-example">
                  <svg class="bd-placeholder-img mw-100" width="100%" height="100" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="Placeholder: Max-width 100%" preserveAspectRatio="xMidYMid slice" focusable="false">
                    <title>Placeholder</title>
                    <rect width="100%" height="100%" fill="#868e96"></rect>
                    <text x="50%" y="50%" fill="#dee2e6" dy=".3em">Max-width 100%</text>
                  </svg>
                </div>
                <pre>&lt;img src="..." class="mw-100" alt="..."&gt;</pre>

                <div class="border-example">
                  <div style="height: 100px; background-color: rgba(255,0,0,.1);">
                    <div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,.1);">Max-height 100%</div>
                  </div>
                </div>
                <pre>&lt;div style="height: 100px; background-color: rgba(255,0,0,.1);"&gt;
        &lt;div class="mh-100" style="width: 100px; height: 200px; background-color: rgba(0,0,255,.1);"&gt;Max-height 100%&lt;/div&gt;
      &lt;/div&gt;</pre>

                <h6>相对于视口（viewport）的尺寸</h6>
                <p>你还可以使用工具类来设置相对于视口（viewport）的宽度和高度。</p>
                <pre>&lt;div class="min-vw-100"&gt;Min-width 100vw&lt;/div&gt;
      &lt;div class="min-vh-100"&gt;Min-height 100vh&lt;/div&gt;
      &lt;div class="vw-100"&gt;Width 100vw&lt;/div&gt;
      &lt;div class="vh-100"&gt;Height 100vh&lt;/div&gt;</pre>

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