Презентация Cascading Style Sheet (CSS) онлайн
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- Тип файла:ppt / pptx (powerpoint)
- Всего слайдов:43 слайда
- Для класса:1,2,3,4,5,6,7,8,9,10,11
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Слайды и текст к этой презентации:
№3 слайд
![CSS Syntax A CSS rule-set](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img2.jpg)
Содержание слайда: CSS Syntax
A CSS rule-set consists of selector and a declaration block:
The selector points to the HTML element you want to style.
The declaration block contains one or more declarations separated by semicolons.
Each declaration includes a CSS property name and a value, separated by a colon.
A CSS declaration always ends with a semicolon, and declaration blocks are surrounded by curly braces
№5 слайд
![Inheritance In HTML document](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img4.jpg)
Содержание слайда: Inheritance
In HTML document one element can contain other elements.
Example: unordered list contained list item elements
<p> can contain character formatting elements like: <b>, <i>, and <body> elements contains the whole document.
Thanks to inheritance, when you apply formatting instructions to an element that contains other elements, that formatting rule applies to every one of those other elements.
For example, if you set a <body> element to the font Verdana (as in the resume style sheet shown earlier), every element inside that <body> element, including all the headings, paragraphs, lists, and so on, gets the Verdana font.
№6 слайд
![Class Selectors First, you](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img5.jpg)
Содержание слайда: Class Selectors
First, you single out specific elements in your page by giving them the same class name. Then, you tell your browser to apply formatting to all the elements that carry that class name. Make sure that the first character is always a letter.
You use the class name, precedes by a period (.)
h3.FancyTitle{
color: red;
font-weight: bolder;
}
<h3 class = “FancyTitle”> Learning to Embodier </h3>
№9 слайд
![CSS Backgrounds The CSS](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img8.jpg)
Содержание слайда: CSS Backgrounds
The CSS background properties are used to define the background effects for elements.
CSS background properties:
background-color --- specifies the background color of an element
background-image ---sp.an image to use the background of an element(by defaults, the image is repeated so it covers the entire element.)
background-repeat –repeat horizontally or vertically
background-attachment – to specify the background image should be fixed(will not scroll with the rest of the page) use the background-attachment property
background-position --- right, top,
№14 слайд
![Spacing All the margin](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img13.jpg)
Содержание слайда: Spacing
All the margin properties can have the following values:
auto - the browser calculates the margin
length - specifies a margin in px, pt, cm, etc.
% - specifies a margin in % of the width of the containing element
inherit - specifies that the margin should be inherited from the parent element
№15 слайд
![Margin-Shortland Property To](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img14.jpg)
Содержание слайда: Margin-Shortland Property
To shorten the code, it is possible to specify all margin properties in one property
margin-top
margin-right
margin-bottom
margin-left
p {
margin: 100px 150px 100px 80px;
}
auto value
The element will then take up the specified width, and the remaining space will be split equally between the left and right margins:
№23 слайд
![Font Size The font-size](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img22.jpg)
Содержание слайда: Font Size
The font-size property sets the size of the text.
Being able to manage the text size is important in web design. However, you should not use font size adjustments to make paragraphs look like headings, or headings look like paragraphs.
Always use the proper HTML tags, like <h1> - <h6> for headings and <p> for paragraphs.
The font-size value can be an absolute, or relative size.
№29 слайд
![List-style Property The](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img28.jpg)
Содержание слайда: List-style Property
The list-style shorthand property sets all the list properties in one declaration.
The properties that can be set, are (in order): list-style-type, list-style-position, list-style-image.
If one of the values above are missing, e.g. "list-style:circle inside;", the default value for the missing property will be inserted, if any.
№34 слайд
![The CSS Box Model Content -](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img33.jpg)
Содержание слайда: The CSS Box Model
Content - The content of the box, where text and images appear
Padding - Clears an area around the content. The padding is transparent
Border - A border that goes around the padding and content
Margin - Clears an area outside the border. The margin is transparent
№38 слайд
![position relative An element](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img37.jpg)
Содержание слайда: position: relative;
An element with position: relative; is positioned relative to its normal position.
Setting the top, right, bottom, and left properties of a relatively-positioned element will cause it to be adjusted away from its normal position. Other content will not be adjusted to fit into any gap left by the element.
№40 слайд
![Overflow Property The](/documents_6/a2575c5b57c6919dfc0d7f1e9bd98c04/img39.jpg)
Содержание слайда: Overflow Property
The overflow property specifies what happens if content overflows an element's box.
This property specifies whether to clip content or to add scrollbars when an element's content is too big to fit in a specified area.
Note: The overflow property only works for block elements with a specified height.
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