Be careful to reset your CSS

We will all know about CSS Reset. Sometimes a simple * {margin: 0 padding: 0} can be done. You cannot generalize either of them. I didn't know which one I used before, but the font was a bit abnormal. Later I changed the Reset of YUI. Everything is normal!

Make a menu today. There is a difference between ie6 and Firefox. I know the difference is 40px. But why is it 40? I asked a friend. He then asked me if you have reset it? Yes, I did. I deleted it. After resetting, the performance will be consistent. Although the problem is solved, I want to know which element I reset? The answer is UL's. You can see the following table.

 /**default css style**/ 
html, address, 
blockquote, 
body, dd, div, 
dl, dt, fieldset, form, 
frame, frameset, 
h1, h2, h3, h4, 
h5, h6, noframes, 
ol, p, ul, center, 
dir, hr, menu, pre { display: block } 
li { display: list-item } 
head { display: none } 
table { display: table } 
tr { display: table-row } 
thead { display: table-header-group } 
tbody { display: table-row-group } 
tfoot { display: table-footer-group } 
col { display: table-column } 
colgroup { display: table-column-group } 
td, th { display: table-cell; } 
caption { display: table-caption } 
th { font-weight: bolder; text-align: center } 
caption { text-align: center } 
body { margin: 8px; line-height: 1.12 } 
h1 { font-size: 2em; margin: .67em 0 } 
h2 { font-size: 1.5em; margin: .75em 0 } 
h3 { font-size: 1.17em; margin: .83em 0 } 
h4, p, 
blockquote, ul, 
fieldset, form, 
ol, dl, dir, 
menu { margin: 1.12em 0 } 
h5 { font-size: .83em; margin: 1.5em 0 } 
h6 { font-size: .75em; margin: 1.67em 0 } 
h1, h2, h3, h4, 
h5, h6, b,strong { font-weight: bolder } 
blockquote { margin-left: 40px; margin-right: 40px } 
i, cite, em, 
var, address { font-style: italic } 
pre, tt, code, 
kbd, samp { font-family: monospace } 
pre { white-space: pre } 
button, textarea, 
input, object, 
select { display:inline-block; } 
big { font-size: 1.17em } 
small, sub, sup { font-size: .83em } 
sub { vertical-align: sub } 
sup { vertical-align: super } 
table { border-spacing: 2px; } 
thead, tbody, 
tfoot { vertical-align: middle } 
td, th { vertical-align: inherit } 
s, strike, del { text-decoration: line-through } 
hr { border: 1px inset } 
ol, ul, dir, 
menu, dd { margin-left: 40px } 
ol { list-style-type: decimal } 
ol ul, ul ol, 
ul ul, ol ol { margin-top: 0; margin-bottom: 0 } 
u, ins { text-decoration: underline } 
br:before { content: "\A" } 
:before, :after { white-space: pre-line } 
center { text-align: center } 
abbr, acronym { font-variant: small-caps; letter-spacing: 0.1em } 
:link, :visited { text-decoration: underline } 
:focus { outline: thin dotted invert } 
/* Begin bidirectionality settings (do not change) */ 
BDO[DIR="ltr"] { direction: ltr; unicode-bidi: bidi-override } 
BDO[DIR="rtl"] { direction: rtl; unicode-bidi: bidi-override } 
*[DIR="ltr"] { direction: ltr; unicode-bidi: embed } 
*[DIR="rtl"] { direction: rtl; unicode-bidi: embed } 
@media print { 
h1 { page-break-before: always } 
h1, h2, h3, 
h4, h5, h6 { page-break-after: avoid } 
ul, ol, dl { page-break-before: avoid } 
}