CSS Properties. The position property

Содержание

Слайд 2

The position property The position property specifies the type of positioning

The position property

The position property specifies the type of positioning method

used for an element
Elements are then positioned using the top, bottom, left, and right properties. However, these properties will not work unless the position property is set first. They also work differently depending on the position value.
static,
relative,
absolute
fixed
Слайд 3

Static Static positioned elements are not affected by the top, bottom,

Static

Static positioned elements are not affected by the top, bottom, left,

and right properties.
An element with position: static; is not positioned in any special way; it is always positioned according to the normal flow of the page:
Слайд 4

Relative An element with position: relative; is positioned relative to its

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.
Слайд 5

Absolute An element with position: absolute; is positioned relative to the

Absolute

An element with position: absolute; is positioned relative to the nearest positioned ancestor

(instead of positioned relative to the viewport, like fixed).
However; if an absolute positioned element has no positioned ancestors, it uses the document body, and moves along with page scrolling.
Note: A "positioned" element is one whose position is anything except static.
Слайд 6

Fixed An element with position: fixed; is positioned relative to the

Fixed

An element with position: fixed; is positioned relative to the viewport, which means

it always stays in the same place even if the page is scrolled. The top, right, bottom, and left properties are used to position the element.
A fixed element does not leave a gap in the page where it would normally have been located.
Notice the fixed element in the lower-right corner of the page. Here is the CSS that is used:
Слайд 7

Floating Boxes The floating box sits wherever you place it, and

Floating Boxes

The floating box sits wherever you place it, and the

rest of the content flows around that box.
The float property specifies whether or not an element should float.
In its simplest use, the float property can be used to wrap text around images.
Слайд 8

Clear property The clear property specifies on which sides of an

Clear property

The clear property specifies on which sides of an element floating elements

are not allowed to float:
Слайд 9

Display property The display property specifies the type of box used for an HTML element.

Display property

The display property specifies the type of box used for

an HTML element.
Слайд 10

CSS Lists The CSS list properties allow you to: Set different

CSS Lists

The CSS list properties allow you to:
Set different list item

markers for ordered lists
Set different list item markers for unordered lists
Set an image as the list item marker
Add background colors to lists and list items
Слайд 11

An Image as The List Item Marker The list-style-image property specifies

An Image as The List Item Marker

The list-style-image property specifies an image as

the list item marker:
Position The List Item Markers
The list-style-position property specifies whether the list-item markers should appear inside or outside the content flow:
Слайд 12

List - Shorthand property When using the shorthand property, the order

List - Shorthand property

When using the shorthand property, the order of

the property values are:
list-style-type (if a list-style-image is specified, the value of this property will be displayed if the image for some reason cannot be displayed)
list-style-position (specifies whether the list-item markers should appear inside or outside the content flow)
list-style-image (specifies an image as the list item marker)
Слайд 13

Styling List With Colors We can also style lists with colors,

Styling List With Colors

We can also style lists with colors, to

make them look a little more interesting.
Anything added to the
    or
      tag, affects the entire list, while properties added to the
    • tag will affect the individual list items:
Слайд 14

CSS border-collapse Property The border-collapse property sets whether the table borders

CSS border-collapse Property

The border-collapse property sets whether the table borders are collapsed into

a single border or detached as in standard HTML.
Слайд 15

Separate value

Separate value

Слайд 16

Collapse value

Collapse value

Слайд 17

Слайд 18

CSS cursor Property The cursor property specifies the type of cursor

CSS cursor Property

The cursor property specifies the type of cursor to be displayed
CSS

Syntax
cursor: value;
ayed when pointing on an element.
Слайд 19

Property Values

Property Values

Слайд 20

:last-child Selector The :last-child selector matches every element that is the

 :last-child Selector

The :last-child selector matches every element that is the last child

of its parent.
Tip: p:last-child is equal to p:nth-last-child(1).
Слайд 21

Example

Example

Слайд 22

Quiz . Which is the correct CSS syntax? body {color: black;} body:color=black; {body:color=black;} {body;color:black;}

Quiz

. Which is the correct CSS syntax?
 body {color: black;}
 body:color=black;
 {body:color=black;}
 {body;color:black;}

Слайд 23

How do you insert a comment in a CSS file? //

How do you insert a comment in a CSS file?

 // this

is a comment
 ' this is a comment
 /* this is a comment */
 // this is a comment //
Слайд 24

How do you add a background color for all elements? all.h1 {background-color:#FFFFFF;} h1.all {background-color:#FFFFFF;} h1 {background-color:#FFFFFF;}

How do you add a background color for all

elements?

 all.h1

{background-color:#FFFFFF;}
 h1.all {background-color:#FFFFFF;}
 h1 {background-color:#FFFFFF;}
Слайд 25

How do you display hyperlinks without an underline? a {text-decoration:no-underline;} a {text-decoration:none;} a {decoration:no-underline;} a {underline:none;}

How do you display hyperlinks without an underline?

 a {text-decoration:no-underline;}
 a {text-decoration:none;}
 a {decoration:no-underline;}
 a

{underline:none;}
Слайд 26

How do you make each word in a text start with

How do you make each word in a text start with

a capital letter?
 text-transform:uppercase
 text-transform:capitalize
 You can't do that with CSS
Слайд 27

How do you display a border like this: The top border

How do you display a border like this: The top border =

10 pixels The bottom border = 5 pixels The left border = 20 pixels The right border = 1pixel?

 border-width:10px 20px 5px 1px;
 border-width:10px 5px 20px 1px;
 border-width:5px 20px 10px 1px;
 border-width:10px 1px 5px 20px;

Слайд 28

How do you make a list that lists its items with

How do you make a list that lists its items with

squares?

 list-style-type: square;
 list-type: square;
 list: square;

Слайд 29

How do you select all p elements inside a div element?

How do you select all p elements inside a div element?

 div

p
 div + p
 div.p
Слайд 30

What is the default value of the position property? static fixed absolute relative

What is the default value of the position property?

 static
 fixed
 absolute
 relative