Css1

CSS in HTML PAGES
• In-Line
• Tag Style
<html>
<head>
<title>Example</title>
</head>
<body style="background-color: #FF0000;">
<p>This is a red page</p>
</body>
</html>
<html>
<head>
<title>Example</title>
<style type="text/css"> body {background-color: #FF0000;} </style>
</head>
<body>
</body>
</html>

CSS in HTML PAGES
• Link
Style.css:
<html>
<head>
<title>My document</title>
<link rel="stylesheet" type="text/css" href="css/style.css" />
</head>
<body>
</body>
</html>
body {
background-color: #FF0000;
}

CSS Properties
body {
background-color: #FFCC66;
background-image: url("butterfly.gif");
background-repeat: no-repeat;
background-position: right bottom;
}
h1 {
background: #FFCC66 url("butterfly.gif") no-repeat right bottom;
}
p {
color: #990000;
font-style: italic;
font-weight: bold;
font-size: 30px;
font-family: arial, sans-serif;
}
h1 {
text-align: center;
}
p {
text-align: justify;
text-decoration: underline;
text-transform: uppercase;
}

CSS Selectors
Universal:
Type:
Class
* {
padding: 0;
margin: 0;
}
h1 {
font-size: 12px;
}
.header {
height: 200px;
}
<h1 class=“header”>This is text</h1>

CSS Selectors
Identification:
Attribute:
#header {
height: 200px;
}
<h1 id=“header”>This is text</h1>
input[type="submit"] {
background: #0f0;
}
<input type="submit" value=“Send to server"/>
<input type=“button" value=“Press me!"/>
input[type*="submit"] {
background: #0f0;
}

CSS PseudoClass
a:link {
color: blue;
}
a:visited {
color: red;
}
a:hover {
color: orange;
font-style: italic;
}
a:active {
color: green;
}
input:focus {
color: #aabbcc;
}
p:first-child {
color: grey;
}

CSS PseudoElement
h1:before {
content: “H1 tag open:";
color: red;
margin: 5px;
}
h1:after {
content: “:H1 tag close";
color: green;
margin: 5px;
}

CSS Selector Combination
Descendant selectors
p span {
color: #333;
}
<p>Черный текст <span>серый текст</span> черный текст </p>
<span>Черный текст</span>
<p>Черный текст <em>Черный текст <span>серый текст</span></em> черный текст</p>
#header .menu div {
text-align: center;
}

Child selectors
div > span {
color: #aaa;
}
<div>Этот текст будет черного цвета.
<span>А этот серого, ведь этот span — дочерний элемент для div.</span>
<p>Тут опять черный текст. <span>И этот текст тоже черный, так как этот span не дочерний
для div. Его непосредственный родитель — тег p.</span>
</p>
</div>

Adjacent sibling selectors
h1 + span {
font-weight: bold;
}
<h1>Very useful text</h1>
<span>This text is bold</span>
<p>Some other text</p>
<span>This text is NOT bold</span>

Grouping selector
h1, h2, h3 {
font-weight: bold;
}
div span, #header {
font-size: 12px
}

CSS Media types
Size
Type
div {
width: 300px;
}
@media all and (max-width: 1280px) {
div {
width: 200px;
}
}
div {
background-color: green;
}
@media print {
div {
background-color: white;
}
}

CSS Vendor prefixes
Chrome: -webkit-
Firefox: -moz-
Internet Explorer: -ms-
Opera: -o-
div {
-webkit-transition: all 4s ease;
-moz-transition: all 4s ease;
-ms-transition: all 4s ease;
-o-transition: all 4s ease;
transition: all 4s ease;
}

CSS Measurements
Unit Description Example
% Defines a measurement as a percentage relative to another value, typically an
enclosing element.
p {
font-size: 16pt;
line-height: 125%;}
cm Defines a measurement in centimeters. div {
margin-bottom: 2cm;}
em A relative measurement for the height of a font in em spaces. Because an em unit is
equivalent to the size of a given font, if you assign a font to 12pt, each "em" unit would
be 12pt; thus, 2em would be 24pt.
p {
letter-spacing: 7em;
}
ex This value defines a measurement relative to a font's x-height. The x-height is
determined by the height of the font's lowercase letter x.
p {
font-size: 24pt;
line-height: 3ex;
}
in Defines a measurement in inches. p {word-spacing: .15in;}
mm Defines a measurement in millimeters. p {
word-spacing: 15mm;}
pc Defines a measurement in picas. A pica is equivalent to 12 points; thus, there are 6
picas per inch.
p {
font-size: 20pc;
}
pt Defines a measurement in points. A point is defined as 1/72nd of an inch. body {
font-size: 18pt;}
px Defines a measurement in screen pixels. p {padding: 25px;}

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