How to override browser defaults using reset or normalize .css


'To override user agent styles, include a normalize.css or reset.css with your project

//You can then override common default user agent styles

This example takes away the blue :focus outline that chrome uses

 

button:focus {
outline:none;
}

 

Here are some common user agent styles shared across browsers, you might use the code below in purple as your normalize file (available MIT License):

---------------------------------------------------------------------------------------------------------------

/*! normalize.css v2.1.3 | MIT License | git.io/normalize */

/* ==========================================================================
HTML5 display definitions
========================================================================== */

/**
* Correct ´block´ display not defined in IE 8/9.
*/

article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
display: block;
}

/**
* Correct ´inline-block´ display not defined in IE 8/9.
*/

audio,
canvas,
video {
display: inline-block;
}

/**
* Prevent modern browsers from displaying ´audio´ without controls.
* Remove excess height in iOS 5 devices.
*/

audio:not([controls]) {
display: none;
height: 0;
}

/**
* Address ´[hidden]´ styling not present in IE 8/9.
* Hide the ´template´ element in IE, Safari, and Firefox < 22.
*/

[hidden],
template {
display: none;
}

/* ==========================================================================
Base
========================================================================== */

/**
* 1. Set default font family to sans-serif.
* 2. Prevent iOS text size adjust after orientation change, without disabling
* user zoom.
*/

html {
font-family: sans-serif; /* 1 */
-ms-text-size-adjust: 100%; /* 2 */
-webkit-text-size-adjust: 100%; /* 2 */
}

/**
* Remove default margin.
*/

body {
margin: 0;
}

/* ==========================================================================
Links
========================================================================== */

/**
* Remove the gray background color from active links in IE 10.
*/

a {
background: transparent;
}

/**
* Address ´outline´ inconsistency between Chrome and other browsers.
*/

a:focus {
outline: thin dotted;
}

/**
* Improve readability when focused and also mouse hovered in all browsers.
*/

a:active,
a:hover {
outline: 0;
}

/* ==========================================================================
Typography
========================================================================== */

/**
* Address variable ´h1´ font-size and margin within ´section´ and ´article´
* contexts in Firefox 4+, Safari 5, and Chrome.
*/

h1 {
font-size: 2em;
margin: 0.67em 0;
}

/**
* Address styling not present in IE 8/9, Safari 5, and Chrome.
*/

abbr[title] {
border-bottom: 1px dotted;
}

/**
* Address style set to ´bolder´ in Firefox 4+, Safari 5, and Chrome.
*/

b,
strong {
font-weight: bold;
}

/**
* Address styling not present in Safari 5 and Chrome.
*/

dfn {
font-style: italic;
}

/**
* Address differences between Firefox and other browsers.
*/

hr {
-moz-box-sizing: content-box;
box-sizing: content-box;
height: 0;
}

/**
* Address styling not present in IE 8/9.
*/

mark {
background: #ff0;
color: #000;
}

/**
* Correct font family set oddly in Safari 5 and Chrome.
*/

code,
kbd,
pre,
samp {
font-family: monospace, serif;
font-size: 1em;
}

/**
* Improve readability of pre-formatted text in all browsers.
*/

pre {
white-space: pre-wrap;
}

/**
* Set consistent quote types.
*/

q {
quotes: "\201C" "\201D" "\2018" "\2019";
}

/**
* Address inconsistent and variable font size in all browsers.
*/

small {
font-size: 80%;
}

/**
* Prevent ´sub´ and ´sup´ affecting ´line-height´ in all browsers.
*/

sub,
sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}

sup {
top: -0.5em;
}

sub {
bottom: -0.25em;
}

/* ==========================================================================
Embedded content
========================================================================== */

/**
* Remove border when inside ´a´ element in IE 8/9.
*/

img {
border: 0;
}

/**
* Correct overflow displayed oddly in IE 9.
*/

svg:not(:root) {
overflow: hidden;
}

/* ==========================================================================
Figures
========================================================================== */

/**
* Address margin not present in IE 8/9 and Safari 5.
*/

figure {
margin: 0;
}

/* ==========================================================================
Forms
========================================================================== */

/**
* 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.
* 2. Remove padding so people aren't caught out if they zero out fieldsets.
*/

legend {
border: 0; /* 1 */
padding: 0; /* 2 */
}

/**
* 1. Correct font family not being inherited in all browsers.
* 2. Correct font size not being inherited in all browsers.
* 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome.
*/

button,
input,
select,
textarea {
font-family: inherit; /* 1 */
font-size: 100%; /* 2 */
margin: 0; /* 3 */
}

/**
* Address Firefox 4+ setting ´line-height´ on ´input´ using ´!important´ in
* the UA stylesheet.
*/

button,
input {
line-height: normal;
}
button:focus {
outline:none;
}

/**
* 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 Chrome, Safari 5+, and IE 8+.
* Correct ´select´ style inheritance in Firefox 4+ and Opera.
*/

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 */
}

/**
* Re-set default cursor for disabled elements.
*/

button[disabled],
html input[disabled] {
cursor: default;
}

/**
* 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 */
}

/**
* 1. Address ´appearance´ set to ´searchfield´ in Safari 5 and Chrome.
* 2. Address ´box-sizing´ set to ´border-box´ in Safari 5 and Chrome
* (include ´-moz´ to future-proof).
*/

input[type="search"] {
-webkit-appearance: textfield; /* 1 */
-moz-box-sizing: content-box;
-webkit-box-sizing: content-box; /* 2 */
box-sizing: content-box;
}

/**
* Remove inner padding and search cancel button in Safari 5 and Chrome
* on OS X.
*/

input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-decoration {
-webkit-appearance: none;
}

/**
* Remove inner padding and border in Firefox 4+.
*/

button:focus,
input:focus,
a:focus,
:focus,
button::-moz-focus-inner,
input::-moz-focus-inner {
border: 0;
padding: 0;
outline:0;
}

/**
* 1. Remove default vertical scrollbar in IE 8/9.
* 2. Improve readability and alignment in all browsers.
*/

textarea {
overflow: auto; /* 1 */
vertical-align: top; /* 2 */
}

/* ==========================================================================
Tables
========================================================================== */

/**
* Remove most spacing between table cells.
*/

table {
border-collapse: collapse;
border-spacing: 0;
}

 

 

Tags: css
Last update:
2015-04-20 21:38
Author:
Mark
Revision:
1.0
Average rating:0 (0 Votes)

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