这个东西没有一个标准答案，网上的不一定适合自己的项目，一般是下载一套标准的css reset，然后在此基础上根据自己实际情况去删改的。适合自己的以及项目的才是最好的。
目前比较有名的是：
第一：
Eric Meyer’s “Reset CSS” 2.0
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {
display: block;
}
body {
line-height: 1;
}
ol, ul {
list-style: none;
}
blockquote, q {
quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
content: '';
content: none;
}
table {
border-collapse: collapse;
border-spacing: 0;
}
-----------------------------
第二：
Yahoo! (YUI 3) Reset CSS
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,
textarea,p,blockquote,th,td {
margin:0;
padding:0;
}
table {
border-collapse:collapse;
border-spacing:0;
}
fieldset,img {
border:0;
}
address,caption,cite,code,dfn,em,strong,th,var {
font-style:normal;
font-weight:normal;
}
ol,ul {
list-style:none;
}
caption,th {
text-align:left;
}
h1,h2,h3,h4,h5,h6 {
font-size:100%;
font-weight:normal;
}
q:before,q:after {
content:'';
}
abbr,acronym { border:0;
}
上面的只是清零样式，没有清除浮动以及其他的样式，慕课网版本的较全。也可以用这个；
下面的是慕课网的清零清除样式文本：
body,ul,ol,dl,dd,h1,h2,h3,h4,h5,h6,p,input,select,textarea,form{margin: 0; padding: 0;}
body{font:14px/1.5 "宋体";}
img{border:none;}
ul,ol{list-style:none;}
input,select,textarea{outline:none;border:none;background:none;}
textarea{resize:none;}
a{text-decoration:none;}
/清浮动/
.clearfix:after{content:"";display:block;clear:both;}
.clearfix{zoom:1;}
选择
::selection {background-color:#669900; color:#ffffff; text-shadow:none;}
::-moz-selection {background-color:#669900; color:#ffffff;text-shadow:none;}
去掉a的下划线
a {blr:expression(this.onFocus=this.blur())} /if IE/
a {outline:none;}/if 火狐等现代浏览器浏览器/
省略号
white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
英文自动换行
word-break: break-all;
强制不换行
white-space:nowrap;
contenteditable="true"
clearfix完整版
.clearfix:before,.clearfix:after { content:""; display:table;}
.clearfix:after{clear:both;}
.clearfix{*zoom:1;}
expression(this.onFocus=this.blur())
by Busy QQ:1060755575
这是慕课网上的Bootstrap的全局样式。其实貌似每个人都有自己的习惯，可以根据这些设置自己常用的样式。
在制作Web页面时，前端人员都习惯为网站设置一个全局样式（reset.css）。那么在Bootstrap框架中也不例外。Bootstrap框架的核心是轻量的CSS基础代码库，他并没有一味的重置样式，而是注重各浏览器基础表现，降低开发难度。大部分前端人员都具有归零的思想，但实际你会发现，归零之后的样式在开发过程中会存在着潜在的问题，例如，在全局样式表中将em变成一个普通标记，明明应该是斜体，怎么就没效果了呢？
Bootstrap框架在这一部分做了一定的变更，不再一味追求归零，而是更注重重置可能产生问题的样式（如，body,form的margin等），保留和坚持部分浏览器的基础样式，解决部分潜在的问题，提升一些细节的体验，具体说明如下：
移除body的margin声明
设置body的背景色为白色
为排版设置了基本的字体、字号和行高
设置全局链接颜色，且当链接处于悬浮“:hover”状态时才会显示下划线样式
html {
font-family: sans-serif;
-webkit-text-size-adjust: 100%;
-ms-text-size-adjust: 100%;
}
body {
margin: 0;
}
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
display: block;
}
audio,
canvas,
progress,
video {
display: inline-block;
vertical-align: baseline;
}
audio:not([controls]) {
display: none;
height: 0;
}
[hidden],
template {
display: none;
}
a {
background: transparent;
}
a:active,
a:hover {
outline: 0;
}
abbr[title] {
border-bottom: 1px dotted;
}
b,
strong {
font-weight: bold;
}
dfn {
font-style: italic;
}
h1 {
margin: .67em 0;
font-size: 2em;
}
mark {
color: #000;
background: #ff0;
}
small {
font-size: 80%;
}
sub,
sup {
position: relative;
font-size: 75%;
line-height: 0;
vertical-align: baseline;
}
sup {
top: -.5em;
}
sub {
bottom: -.25em;
}
img {
border: 0;
}
svg:not(:root) {
overflow: hidden;
}
figure {
margin: 1em 40px;
}
hr {
height: 0;
-moz-box-sizing: content-box;
box-sizing: content-box;
}
pre {
overflow: auto;
}
code,
kbd,
pre,
samp {
font-family: monospace, monospace;
font-size: 1em;
}
button,
input,
optgroup,
select,
textarea {
margin: 0;
font: inherit;
color: inherit;
}
button {
overflow: visible;
}
button,
select {
text-transform: none;
}
button,
html input[type="button"],
input[type="reset"],
input[type="submit"] {
-webkit-appearance: button;
cursor: pointer;
}
button[disabled],
html input[disabled] {
cursor: default;
}
button::-moz-focus-inner,
input::-moz-focus-inner {
padding: 0;
border: 0;
}
input {
line-height: normal;
}
input[type="checkbox"],
input[type="radio"] {
box-sizing: border-box;
padding: 0;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
height: auto;
}
input[type="search"] {
-webkit-box-sizing: content-box;
-moz-box-sizing: content-box;
box-sizing: content-box;
-webkit-appearance: textfield;
}
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
}
fieldset {
padding: .35em .625em .75em;
margin: 0 2px;
border: 1px solid #c0c0c0;
}
legend {
padding: 0;
border: 0;
}
textarea {
overflow: auto;
}
optgroup {
font-weight: bold;
}
table {
border-spacing: 0;
border-collapse: collapse;
}
td,
th {
padding: 0;
}
@media print {
* {
color: #000 !important;
text-shadow: none !important;
background: transparent !important;
box-shadow: none !important;
}
a,
a:visited {
text-decoration: underline;
}
a[href]:after {
content: " (" attr(href) ")";
}
abbr[title]:after {
content: " (" attr(title) ")";
}
a[href^="javascript:"]:after,
a[href^="#"]:after {
content: "";
}
pre,
blockquote {
border: 1px solid #999;
page-break-inside: avoid;
}
thead {
display: table-header-group;
}
tr,
img {
page-break-inside: avoid;
}
img {
max-width: 100% !important;
}
p,
h2,
h3 {
orphans: 3;
widows: 3;
}
h2,
h3 {
page-break-after: avoid;
}
select {
background: #fff !important;
}
.navbar {
display: none;
}
.table td,
.table th {
background-color: #fff !important;
}
.btn > .caret,
.dropup > .btn > .caret {
border-top-color: #000 !important;
}
.label {
border: 1px solid #000;
}
.table {
border-collapse: collapse !important;
}
.table-bordered th,
.table-bordered td {
border: 1px solid #ddd !important;
}
}
