/*! normalize.css v8.0.0 | MIT License | github.com/necolas/normalize.css */ /* Document
   ========================================================================== */ /**
 * 1. 修正所有瀏覽器中的行高.
 * 2. 在iOS的切換橫豎屏時，防止字體大小的調整.
 */ html {   line-height: 1.15; /* 1 */   -webkit-text-size-adjust: 100%; /* 2 */ } /* Sections
   ========================================================================== */ /**
 * 刪除所有瀏覽器的margin值。
 */ body {   margin: 0; } /**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 * 修正h1元素的font-size和margin值
 */ h1 {   font-size: 2em;   margin: 0.67em 0; } /* Grouping content
   ========================================================================== */ /**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 * 1.修正火狐瀏覽器的box-sizing
 */ hr {   box-sizing: content-box; /* 1 */   height: 0; /* 1 */   overflow: visible; /* 2 */ } /**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 1. 在所有瀏覽器中糾正字體大小的繼承和擴展。
 * 2. Correct the odd `em` font sizing in all browsers.
 * 2. 在所有瀏覽器中糾正奇數的字體大小。
 */ pre {   font-family: monospace, monospace; /* 1 */   font-size: 1em; /* 2 */ } /* Text-level semantics：文本級別的語義
   ========================================================================== */ /**
 * Remove the gray background on active links in IE 10.
 * 刪除IE 10中活躍鏈接的灰色背景。
 */ a {   background-color: transparent; } /**
 * 1. Remove the bottom border in Chrome 57-
 * 1. 移除Chrome 57-瀏覽器的border-bottom
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 * 2. 在Chrome、Edge、IE、Opera和Safari中添加正確的text-decoration。
 */ abbr[title] {   border-bottom: none; /* 1 */   text-decoration: underline; /* 2 */   text-decoration: underline dotted; /* 2 */ } /**
 * Add the correct font weight in Chrome, Edge, and Safari.
 * 在Chrome、Edge和Safari中添加正確的font-weight
 */ b,
strong {   font-weight: bolder; } /**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 1.在所有瀏覽器中糾正字體大小的繼承和擴展。
 * 2. Correct the odd `em` font sizing in all browsers.
 */ code,
kbd,
samp {   font-family: monospace, monospace; /* 1 */   font-size: 1em; /* 2 */ } /**
 * Add the correct font size in all browsers.
 */ small {   font-size: 80%; } /**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 * 防止“sub”和“sup”元素影響所有瀏覽器的線高度。
 */ sub,
sup {   font-size: 75%;   line-height: 0;   position: relative;   vertical-align: baseline; } sub {   bottom: -0.25em; } sup {   top: -0.5em; } /* Embedded content：嵌入命令
   ========================================================================== */ /**
 * Remove the border on images inside links in IE 10.
 */ img {   border-style: none; } /* Forms
   ========================================================================== */ /**
 * 1. Change the font styles in all browsers.
 * 2. Remove the margin in Firefox and Safari.
 */ button,
input,
optgroup,
select,
textarea {   font-family: inherit; /* 1 */   font-size: 100%; /* 1 */   line-height: 1.15; /* 1 */   margin: 0; /* 2 */ } /**
 * Show the overflow in IE.
 * 1. Show the overflow in Edge.
 */ button,
input { /* 1 */   overflow: visible; } /**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 在Edge、Firefox和IE中刪除文本轉換的繼承。
 * 1. Remove the inheritance of text transform in Firefox.
 * 1. 刪除Firefox中文本轉換的繼承。
 */ button,
select { /* 1 */   text-transform: none; } /**
 * Correct the inability to style clickable types in iOS and Safari.
 * 糾正在iOS和Safari中無法使用可點擊類型的功能。
 */ button,
[type="button"],
[type="reset"],
[type="submit"] {   -webkit-appearance: button; } /**
 * Remove the inner border and padding in Firefox.
 * 移除Firefox中border和padding
 */ button::-moz-focus-inner,
[type="button"]::-moz-focus-inner,
[type="reset"]::-moz-focus-inner,
[type="submit"]::-moz-focus-inner {   border-style: none;   padding: 0; } /**
 * Restore the focus styles unset by the previous rule.
 * 恢復以前規則未設置的焦點樣式。
 */ button:-moz-focusring,
[type="button"]:-moz-focusring,
[type="reset"]:-moz-focusring,
[type="submit"]:-moz-focusring {   outline: 1px dotted ButtonText; } /**
 * Correct the padding in Firefox.
 * 修正火狐的padding值
 */ fieldset {   padding: 0.35em 0.75em 0.625em; } /**
 * 1. Correct the text wrapping in Edge and IE.
 * 1. 
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 2. 從IE的“fieldset”元素中糾正顏色繼承。
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 * 3.
 */ legend {   box-sizing: border-box; /* 1 */   color: inherit; /* 2 */   display: table; /* 1 */   max-width: 100%; /* 1 */   padding: 0; /* 3 */   white-space: normal; /* 1 */ } /**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 * 在Chrome、Firefox和Opera中添加正確的垂直對齊方式。
 */ progress {   vertical-align: baseline; } /**
 * Remove the default vertical scrollbar in IE 10+.
 * 刪除IE 10+中的默認垂直滾動條
 */ textarea {   overflow: auto; } /**
 * 1. Add the correct box sizing in IE 10.
 * 1. 修正IE10中的box-sizing
 * 2. Remove the padding in IE 10.
 * 2. 移除IE10的padding值
 */ [type="checkbox"],
[type="radio"] {   box-sizing: border-box; /* 1 */   padding: 0; /* 2 */ } /**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 * 修正Chrome中增加和減量按鈕的光標樣式。
 */ [type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {   height: auto; } /**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 1. 修正在Chrome和Safari中出現的奇怪現象。
 * 2. Correct the outline style in Safari.
 * 2. 修正Safari中的outline樣式
 */ [type="search"] {   -webkit-appearance: textfield; /* 1 */   outline-offset: -2px; /* 2 */ } /**
 * Remove the inner padding in Chrome and Safari on macOS.
 * 移除chrome和macos上的Safari的padding值
 */ [type="search"]::-webkit-search-decoration {   -webkit-appearance: none; } /**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 1. 糾正在iOS和Safari中無法使用可點擊類型的功能。
 * 2. Change font properties to `inherit` in Safari.
 * 2. 在Safari中更改字體屬性，以“inherit”。
 */ ::-webkit-file-upload-button {   -webkit-appearance: button; /* 1 */   font: inherit; /* 2 */ } /* Interactive：交互式的
   ========================================================================== */ /*
 * Add the correct display in Edge, IE 10+, and Firefox.
 * 修正Edge, IE 10+,和 Firefox中details標簽的display屬性
 */ details {   display: block; } /*
 * Add the correct display in all browsers.
 * 修正所有瀏覽器的display屬性
 */ summary {   display: list-item; } /* Misc
   ========================================================================== */ /**
 * Add the correct display in IE 10+.
 * 修正IE10+的template元素的display
 */ template {   display: none; } /**
 * Add the correct display in IE 10.
 * 修正IE 10中的display
 */ [hidden] {   display: none; }