html basics w3schools

The most basic understanding and writing of HTML: "My first page"What HTML is:Its full name is the Hyper Text Markup Language Hypertext Markup Language, which includes videos, pictures, links and other elements of the page. It is not a programming language, but a markup language.Characteristics:Simplicity, scalability, platform independence, versatilityHTML syntax:Grammar:Mark:Category: Single mark, double

. in the JAvaScript Loading in XML There are two ways in which a document ① load the same domain XML documentation. ② loads a string representing XML. can take advantage Domapi for XML (in some ways XML is used to store data, which allows the user to customize markup in XML) the operation. DOM serialization of objects becomes XML string. is to speak the XML file content of all parties as a string. this is to put a XML The document is exported as a string. The production of XPath technology:b

the same domain XML documentation. ② loads a string representing XML . can use Domapi for XML (in some ways XML is used to store data, allowing users to define their own tags in XML) the operation. DOM serialization of objects becomes XML string. is to say XML the file content of all parties as a string. this is to put a XML The document is exported as a string. The production of XPath technology:because the use getElementById or Get Elementbytagname not very good to be sure XML the nodeso the

. CellHeader, cell contents are automatically centered, boldAlign: How cell content is aligned. valign: The vertical alignment of the contents of the cell. Width: cell width. Height: cell height. bgcolor: Background color. Background: Background image. The contents must be placed in the cell, the cell must be in the row , and the row must be placed in the table. when you set the row height and sizing of a cell, the corresponding row or column is affected. Cell Merging: (It is recommended to use

customary definition, for example: Var a=5; or var a= "Baidu", or Var a=false;3. OperatorsMath operators: + 、-、 *,/Relational operator: = = = = >= Logical operator: | | !Other operators: + = = *=/=?:4. StatementsGenerally divided into sequential, branching, and cyclic statements, with C #5. Arrays (collections with C #)The definition of the array: var array = new Array (), its length is dynamic, and it can put any type of element.Assignment of the array: array[0]=3; Array[1]= "hello!";The lengt

customary definition, for example: Var a=5; or var a= "Baidu", or Var a=false;3. OperatorsMath operators: + 、-、 *,/Relational operator: = = = = >= Logical operator: | | !Other operators: + = = *=/=?:4. StatementsGenerally divided into sequential, branching, and cyclic statements, with C #5. Arrays (collections with C #)The definition of the array: var array = new Array (), its length is dynamic, and it can put any type of element.Assignment of the array: array[0]=3; Array[1]= "hello!";The lengt

submission is to encapsulate the data into a connection key-value pairs, through the browser's address bar, submitted to the server, because it requested the address length is limited, so it is not possible to submit the file by the Get method, and it is very insecure in the URL, For the post submission is encapsulated in the data packet, generally cannot see the data, is in the format of the message to the server to send things. The format is also connected in the form of a key-value pair in

HTML TagsGrammar:Explain:1 , SRC: identifies the location of the image;2 , alt: specifies descriptive text for the image, and when the image is not visible (when the download is unsuccessful), you can see the text specified by the attribute;3 , Title: provides a description of the image when the image is visible (the text displayed when the mouse slides over the picture);4 . The image can be an image file in gif,png,jpeg format.HTML form labels, user

In HTML, the image is defined by the tag and is an empty element1. SRC attributeThe Source property, which is the URL address.2. alt attributeReplace the Text property, and when the picture fails to load, the browser displays the alternate text instead of the image.3. Height/width PropertiesHeight/width of image, default unit is pixel4. Border Border Property5. CSS "Float" property6. Define HYPERLINK Images7. Define map image (client image map)----ha

Smart Form1) H5 gives us a way to associate input with a form with the forms. Only need to giveThe form form forms an ID, and then adds the form property to input outside the form, pointing to theID, you can implement the binding of the form to input.2) H5 gives us a new type of input that has been added a lot.3) H5 New input attribute:①form: The ID of the association to develop the form.②placeholder: Input Box prompt content③required: Required.④autofocus: Specifies the input box, which automat

= "true">span>Remember Mespan>ahref="">Logon encounters a problema>BR> inputtype= "button"value= "Login"onclick= "alert (' Login verification ')"> form> Div> DivID= "Footer"style= "Background-color:cornflowerblue;text-align:center;">I>Copyright @006 KikiI>Div> Div> Div> Select> option>Collectionoption> option>Likesoption> option>Commentsoption> option>Play Rewardsoption> Select> ul>

An HTML document structureThe HTML document structure:HTML Common Tags: 1. NewLine markers 5. Text list marked orderly Two- table Mark1. Table marker 2. Title Marker 3. Table Header Markers 4. Table row marker 5. Cell tags are also called column markers Three HTML form tags1.Defines the URL address information for processing the form data program, etc., in the ba

How do I access a webpage?The software that the user accesses the webpage is called the browser, compares the popular browser:IE Firefox Chrome Safari OperaWeb serverWhen a user requests a Web page in a browser, the request is sent over the internet to a special, always-networked computer called the Web server, which is dedicated to hosting the Web site.Web server is a special computer that is designed to send Web pages to users who make network requests.EquipmentDevices used to access the site:

1) htmlA. Definitions and usageIn HTML 4.01, HTML5 is not based on SGML, so you do not need to reference a DTD.B. Version declarationsHTML5:HTML 4.01: "Http://www.w3.org/TR/html4/loose.dtd" >The DTD contains all the HTML elements and attributes, including both display and deprecated elements (such as font). Frameset (framesets) is not allowed.Rules of attention:

Key excerpt: HTML head element label Description Defines the information for a document Defines the title of the document Defines the default link address for page link labels Defines a relationship between a document and an external resource Defines the metadata in an HTML document

Example of styling a hyperlinkA:link The hyperlink is pre-state.a:visited Post-click status of Hyperlinksa:hover when hovering over a hyperlinka:active When you click the hyperlinkWhen you define these states, there is a sequence L v H aCode area:1 DOCTYPE HTML Public "-//W3C//DTD XHTML 1.0 transitional//en" "http://www.w3.org/TR/xhtml1/DTD/ Xhtml1-transitional.dtd ">2 HTMLxmlns= "http://www.w3.org/1999/xhtml">3 Head>4 Metahttp-equiv= "Content-type"co

Learning is short, the study is always step by step down to the ground, and basic learning is the preparation before starting, of course, it is particularly important.Learning HTML language is more so.Recommended Development tools:1, Webstorm2. Sublime text3, Hbuilder4. Eclipse5. Visual StdioI. The nature of the Web pageThe essence of a Web page is a Hypertext Markup language that can create powerful Web pages by combining other web technologies such

">femaleP> P> Selectname= "Hometown"> optionvalue= "Hebei"selected= "Selected">Hebei Provinceoption> -- optionvalue= "Hebei" >Henan Provinceoption> optionvalue= "Hebei">Hunan Provinceoption> optionvalue= "Hebei">Hubei Provinceoption> Select> P> P> inputtype= "Reset"> P> P> inputtype= "button"value= "button"> P> P> inputtype= "File"> P> legend>Sign in.legend> inputtype= "text

HTML: site (site)-Web pageHTML as the file suffix, you can change the file into a Web pageHTML is the name of a programming language: Hypertext Markup LanguageBeyond the text of the category, in addition to the text can also have pictures, video, audio, animation effects and other content, a computer programming language consisting of markers (the role of HTML language : making Web pagesBasic Format :The co

and right, height=100% to tile the picture up and down3. Common Marknbsp; --SpaceThird, form1. Basic formatRepresents creating a table with 3 cells in the first row and 2 cells in the second row2. PropertiesBorder= ""--border thickness, 0 or 1Width= ""--width, px or%Height= ""--height, px or%Align= ""--horizontal arrangement format, Center/left/rightValign= ""--vertical arrangement format, Center/top/bottomBgcolor= ""--background colorBackground= ""--background imageCellspacing= ""--spacing bet