Problems with my web page

Question

Hi, I have some problems related to my web page. My background colors of all my web page no matter on the body or navigation area disappear. I don't know why. Do you have any solutions on this? Here is my code information in my normalize.css:
/*! normalize.css v1.1.0 | MIT License | git.io/normalize */
/* ==========================================================================
   HTML5 display definitions
   ========================================================================== */
/**
 * Correct block display not defined in IE 6/7/8/9 and Firefox 3.
 */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
nav,
section,
summary {
    display: block;
}
/**
 * Correct inline-block display not defined in IE 6/7/8/9 and Firefox 3.
 */
audio,
canvas,
video {
    display: inline-block;
    *display: inline;
    *zoom: 1;
}
/**
 * Prevent modern browsers from displaying audio without controls.
 * Remove excess height in iOS 5 devices.
 */
audio:not([controls]) {
    display: none;
    height: 0;
}
/**
 * Address styling not present in IE 7/8/9, Firefox 3, and Safari 4.
 * Known issue: no IE 6 support.
 */
[hidden] {
    display: none;
}
/* ==========================================================================
   Base
   ========================================================================== */
/**
 * 1. Correct text resizing oddly in IE 6/7 when body font-size is set using
 *    em units.
 * 2. Prevent iOS text size adjust after orientation change, without disabling
 *    user zoom.
 */
html {
    font-size: 100%; /* 1 /
    -webkit-text-size-adjust: 100%; / 2 /
    -ms-text-size-adjust: 100%; / 2 */
}
/**
 * Address font-family inconsistency between textarea and other form
 * elements.
 */
html,
button,
input,
select,
textarea {
    font-family: sans-serif;
}
/**
 * Address margins handled incorrectly in IE 6/7.
 */
body {
    margin: 0;
}
/* ==========================================================================
   Links
   ========================================================================== */
/**
 * 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 font sizes and margins set differently in IE 6/7.
 * Address font sizes within section and article in Firefox 4+, Safari 5,
 * and Chrome.
 */
h1 {
    font-size: 2em;
    margin: 0.67em 0;
}
h2 {
    font-size: 1.5em;
    margin: 0.83em 0;
}
h3 {
    font-size: 1.17em;
    margin: 1em 0;
}
h4 {
    font-size: 1em;
    margin: 1.33em 0;
}
h5 {
    font-size: 0.83em;
    margin: 1.67em 0;
}
h6 {
    font-size: 0.67em;
    margin: 2.33em 0;
}
/**
 * Address styling not present in IE 7/8/9, Safari 5, and Chrome.
 */
abbr[title] {
    border-bottom: 1px dotted;
}
/**
 * Address style set to bolder in Firefox 3+, Safari 4/5, and Chrome.
 */
b,
strong {
    font-weight: bold;
}
blockquote {
    margin: 1em 40px;
}
/**
 * Address styling not present in Safari 5 and Chrome.
 */
dfn {
    font-style: italic;
}
/**
 * Address differences between Firefox and other browsers.
 * Known issue: no IE 6/7 normalization.
 */
hr {
    -moz-box-sizing: content-box;
    box-sizing: content-box;
    height: 0;
}
/**
 * Address styling not present in IE 6/7/8/9.
 */
mark {
    background: #ff0;
    color: #000;
}
/**
 * Address margins set differently in IE 6/7.
 */
p,
pre {
    margin: 1em 0;
}
/**
 * Correct font family set oddly in IE 6, Safari 4/5, and Chrome.
 */
code,
kbd,
pre,
samp {
    font-family: monospace, serif;
    _font-family: 'courier new', monospace;
    font-size: 1em;
}
/**
 * Improve readability of pre-formatted text in all browsers.
 */
pre {
    white-space: pre;
    white-space: pre-wrap;
    word-wrap: break-word;
}
/**
 * Address CSS quotes not supported in IE 6/7.
 */
q {
    quotes: none;
}
/**
 * Address quotes property not supported in Safari 4.
 */
q:before,
q:after {
    content: '';
    content: none;
}
/**
 * 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;
}
/* ==========================================================================
   Lists
   ========================================================================== */
/**
 * Address margins set differently in IE 6/7.
 */
dl,
menu,
ol,
ul {
    margin: 1em 0;
}
dd {
    margin: 0 0 0 40px;
}
/**
 * Address paddings set differently in IE 6/7.
 */
menu,
ol,
ul {
    padding: 0 0 0 40px;
}
/**
 * Correct list images handled incorrectly in IE 7.
 */
nav ul,
nav ol {
    list-style: none;
    list-style-image: none;
}
/* ==========================================================================
   Embedded content
   ========================================================================== */
/**
 * 1. Remove border when inside a element in IE 6/7/8/9 and Firefox 3.
 * 2. Improve image quality when scaled in IE 7.
 */
img {
    border: 0; /* 1 /
    -ms-interpolation-mode: bicubic; / 2 */
}
/**
 * Correct overflow displayed oddly in IE 9.
 */
svg:not(:root) {
    overflow: hidden;
}
/* ==========================================================================
   Figures
   ========================================================================== */
/**
 * Address margin not present in IE 6/7/8/9, Safari 5, and Opera 11.
 */
figure {
    margin: 0;
}
/* ==========================================================================
   Forms
   ========================================================================== */
/**
 * Correct margin displayed oddly in IE 6/7.
 */
form {
    margin: 0;
}
/**
 * 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 6/7/8/9.
 * 2. Correct text not wrapping in Firefox 3.
 * 3. Correct alignment displayed oddly in IE 6/7.
 */
legend {
    border: 0; /* 1 /
    padding: 0;
    white-space: normal; / 2 /
    *margin-left: -7px; / 3 */
}
/**
 * 1. Correct font size not being inherited in all browsers.
 * 2. Address margins set differently in IE 6/7, Firefox 3+, Safari 5,
 *    and Chrome.
 * 3. Improve appearance and consistency in all browsers.
 */
button,
input,
select,
textarea {
    font-size: 100%; /* 1 /
    margin: 0; / 2 /
    vertical-align: baseline; / 3 /
    *vertical-align: middle; / 3 */
}
/**
 * Address Firefox 3+ setting line-height on input using !important in
 * the UA stylesheet.
 */
button,
input {
    line-height: normal;
}
/**
 * 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 6+.
 * 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.
 * 4. Remove inner spacing in IE 7 without affecting normal text inputs.
 *    Known issue: inner spacing remains in IE 6.
 */
button,
html input[type="button"], /* 1 /
input[type="reset"],
input[type="submit"] {
    -webkit-appearance: button; / 2 /
    cursor: pointer; / 3 /
    *overflow: visible;  / 4 */
}
/**
 * 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.
 * 2. Remove excess padding in IE 8/9.
 * 3. Remove excess padding in IE 7.
 *    Known issue: excess padding remains in IE 6.
 */
input[type="checkbox"],
input[type="radio"] {
    box-sizing: border-box; /* 1 /
    padding: 0; / 2 /
    *height: 13px; / 3 /
    *width: 13px; / 3 */
}
/**
 * 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 3+.
 */
button::-moz-focus-inner,
input::-moz-focus-inner {
    border: 0;
    padding: 0;
}
/**
 * 1. Remove default vertical scrollbar in IE 6/7/8/9.
 * 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;
}

Nick Nish · Accepted Answer

Hey Kai, 
I figured it out. A few things:
Remember that the order you enter in your stylesheets in your  matters. If you use reset.css or normalize.css, put it at the top of your stylesheets so that your CSS can override them. 
Also, I saw that in one of your files you linked to css/Style.css instead of style.css. I'm not sure if that matters, but I would be careful about things like that anyway.
Be careful not to leave CSS properties without a ";". They're crucial and things can break with mistakes like these. The same way, you have to close your strings.
Example: Notice below the two apostrophes and semicolon.
CSS
body { background-image: url(' ... '); }

Finally, sorry that it took so long to figure this out. I'm hoping that Treehouse adds sharable workspaces soon so that next time you can just invite me, then we'd figure it out in like 5 minutes. Haha! Sending you my corrections via email.

Max Bailey · Answer

Also, make sure your CSS is below the normalize.

Max Bailey · Answer

Ka,
The things that start with *, like *zoom are basically polyfills for IE. The rest is pretty standard stuff for a reset.
Can you doing this for me quick:
css
body {
    background:red !important;
}

And post what the results are?

Max Bailey · Answer

Hey Ka, If you're trying to do it all within the HTML file, you can do it like this. html Kai's Website Otherwise, if you're including an external CSS file (which is recommended in 95% of cases), you can do it like so index.html html Kai's Website style.css css body { background:ghostwhite; } NOTE: The ghostwhite color is very close to a regular white background, try replacing it with red, or some other noticeable color! I hope this helped.

Nick Nish · Answer

Ka Kai Chan Follow this link (http://cdpn.io/LsJEe): Your HTML code should look like this: HTML Document

Hello

Then your personalized CSS (Notice you link it UNDER the Normalize.css) should look like this: ```CSS body { background-color: #497bad; } h1 { color: #333; text-align:center; } ```

Ka Kai Chan · Answer

You mean I open up a new .css file and type in the code like this "body { background-color: ghostwhite; }"? No, it does not work. The same problem still exists.

Nick Nish · Answer

Hi Kai, 
First, normalize.css modifies all your elements and resets them to standardize their properties so that they look the same across different browsers.
Now, if you want to change the background-color of your body, try opening a new CSS stylesheet and enter:
CSS
body { background-color: ghostwhite; }

Let me know if this helps or if you need more help!

Welcome to the Treehouse Community

Looking to learn something new?

Ka Kai Chan

Ka Kai Chan

Problems with my web page

7 Answers

Nick Nish

Nick Nish

Ka Kai Chan

Ka Kai Chan

Max Bailey

Max Bailey

Ka Kai Chan

Ka Kai Chan

Max Bailey

Max Bailey

Max Bailey

Max Bailey

Ka Kai Chan

Ka Kai Chan

Max Bailey

Max Bailey

Ka Kai Chan

Ka Kai Chan

Nick Nish

Nick Nish

Ka Kai Chan

Ka Kai Chan

Nick Nish

Nick Nish

Ka Kai Chan

Ka Kai Chan

Ka Kai Chan

Ka Kai Chan

Ka Kai Chan

Ka Kai Chan

Nick Nish

Nick Nish

Ka Kai Chan

Ka Kai Chan

Nick Nish

Nick Nish