时间:2021-07-01 10:21:17 帮助过:37人阅读
上一章节我们对Normalize.css源码进行解析,但是由于其代码过长导致不宜浏览,所以表单Forms,表格Table部分内容放在此章节介绍。本章节会完成所有源代码翻译整理,最终会整理出Normalize-zh.css中文版本并开源至Github供大家交流使用。
回顾:关于CSS Reset 那些事(二)之 Normalize.css 源码解读
上章节对 html与body元素,HTML5元素,链接,语义化文本,内嵌元素,群组元素 等源码内容已经做了解析,这章节继续完成表单Forms,表格Table部分。
源码地址:https://github.com/necolas/normalize.css/blob/master/normalize.css
源码版本:v3.0.3
/** * 1. Correct color not being inherited. * Known issue: affects color of disabled elements. * 2. Correct font properties not being inherited. * 3. Address margins set differently in Firefox 4+, Safari, and Chrome. */button,input,optgroup,select,textarea { color: inherit; /* 1 */ font: inherit; /* 2 */ margin: 0; /* 3 */}
有一些浏览器会把form表单中的一些元素 textarea,text,button,select 中的字体和字体颜色默认会设置成用户的字体或者是浏览器的字体,并不会从父元素继承,所以这里重置了这些元素的默认样式。
/** * Address `overflow` set to `hidden` in IE 8/9/10/11. */button { overflow: visible;}
在 IE 8/9/10/11里的button默认的overflow是hidden,这里统一为visible
/** * Address inconsistent `text-transform` inheritance for `button` and `select`. * All other form control elements do not inherit `text-transform` values. * Correct `button` style inheritance in Firefox, IE 8/9/10/11, and Opera. * Correct `select` style inheritance in Firefox. */button,select { text-transform: none;}
/** * 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` * and `video` controls. * 2. Correct inability to style clickable `input` types in iOS. * 3. Improve usability and consistency of cursor style between image-type * `input` and others. */button,html input[type="button"], /* 1 */input[type="reset"],input[type="submit"] { -webkit-appearance: button; /* 2 */ cursor: pointer; /* 3 */}
这里将可点击的按钮,统一设置鼠标样式为pointer,提高了可用性
/** * Re-set default cursor for disabled elements. */button[disabled],html input[disabled] { cursor: default;}
/** * Remove inner padding and border in Firefox 4+. */button::-moz-focus-inner,input::-moz-focus-inner { border: 0; padding: 0;}
/** * Address Firefox 4+ setting `line-height` on `input` using `!important` in * the UA stylesheet. */input { line-height: normal;}
Firefox浏览器会默认设置input[type="button"]的行高为normal !important,这里统一样式
/** * It's recommended that you don't attempt to style these elements. * Firefox's implementation doesn't respect box-sizing, padding, or width. * * 1. Address box sizing set to `content-box` in IE 8/9/10. * 2. Remove excess padding in IE 8/9/10. */input[type="checkbox"],input[type="radio"] { box-sizing: border-box; /* 1 */ padding: 0; /* 2 */}
/** * Fix the cursor style for Chrome's increment/decrement buttons. For certain * `font-size` values of the `input`, it causes the cursor style of the * decrement button to change from `default` to `text`. */input[type="number"]::-webkit-inner-spin-button,input[type="number"]::-webkit-outer-spin-button { height: auto;}
/** * 1. Address `appearance` set to `searchfield` in Safari and Chrome. * 2. Address `box-sizing` set to `border-box` in Safari and Chrome. */input[type="search"] { -webkit-appearance: textfield; /* 1 */ box-sizing: content-box; /* 2 */}
searchfield是CSS3的属性,它可以让一个div元素看上去像任何元素,但是浏览器支持性并不好,
/** * Remove inner padding and search cancel button in Safari and Chrome on OS X. * Safari (but not Chrome) clips the cancel button when the search input has * padding (and `textfield` appearance). */input[type="search"]::-webkit-search-cancel-button,input[type="search"]::-webkit-search-decoration { -webkit-appearance: none;}
/** * Define consistent border, margin, and padding. */fieldset { border: 1px solid #c0c0c0; margin: 0 2px; padding: 0.35em 0.625em 0.75em;}
/** * 1. Correct `color` not being inherited in IE 8/9/10/11. * 2. Remove padding so people aren't caught out if they zero out fieldsets. */legend { border: 0; /* 1 */ padding: 0; /* 2 */}
/** * Remove default vertical scrollbar in IE 8/9/10/11. */textarea { overflow: auto;}
/** * Don't inherit the `font-weight` (applied by a rule above). * NOTE: the default cannot safely be changed in Chrome and Safari on OS X. */optgroup { font-weight: bold;}
/** * Remove most spacing between table cells. */table { border-collapse: collapse; border-spacing: 0;}td,th { padding: 0;}
Normalize-zh.css是根据对Normalize.css的源码分析后,经过学习与整理,将源代码中的英文注释文档翻译为中文版本,方便国内的开发者学习和使用,我深知此版本一定有很多不足,希望能得到大家的理解和支持,同样也很愿意和大家一起完善。
现已将源代码开源至Github
项目地址:https://github.com/Alsiso/normalize-zh
经过两个章节对Normalize.css的源码进行了学习,清晰的了解了它的工作原理,作为传统CSS Reset替代者,它当之无愧,为大家提供一套很完整的跨浏览器解决方案。
不过,你是否会有和我一样的需求,比如开发一个小站,或者一个PC端的系统时,也许只需要一些简单的基础模块,比如我只想要简单的样式重置,统一各浏览器的效果就好,并不需要HTML5以及CSS3的一些问题修复。
那么下一章,我们来介绍,如果制定属于自己的 CSS基础代码库?