原创 Shortcut for some CSS properties: padding, background
1. padding: padding-top: 0px; padding-right:20px; padding-bottom: 30px; padding-left: 10px; now we type as padding:
2020-06-20 01:48:20
原创 media in the link element -CSS and select by #id
<span style="font-size:18px;color:#000066;"><strong><em>ADD media queries into HTML</em></strong></span><span style="fo
2020-06-20 01:48:20
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原创 CSS and its selectors- Head first into HTML
We can use CSS to handle styles for multiple pages . Use comma to select multiple elements, like <strong>h1, h2</
2020-06-20 01:48:20
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原创 Interactivity--D3
1. event listener: on ("event_name", behavior); commonly, you will want to bind event listeners to more than one eleme
2020-06-20 01:48:19
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原创 pesudo-class of element
a: link { color: green; applied to links when they are in an unvisited state { a: visited { color: red; ap
2020-06-20 00:36:43
原创 Box model in CSS-- Head first into CSS
1. line height: the space between lines you can use pixels or em, percentage that is relative to font-size to specify
2020-06-20 00:36:42
原创 form element in HTML--Part1
how the forms work in the browse 1. The browse loads the page the browser load the HTML page like it always does, when
2020-06-20 00:36:42
原创 Visual display of quantitative information
1. data measure: the graphical element that actually locates or plots the data is the data measures. like, the bars of
2020-06-20 00:36:42
原创 Web page construct -- Head first into HTML
1. Create a rough sketch of the journal that is the basis for your page design 2. Use the basic building blocks of HTM
2020-02-20 17:50:26
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原创 Font in CSS {font size, font color, font weight, text decoration, font family
font-family body { font-family: Verdana, Geneva, Arial, sans-serif; /* for font-family name, if there are mor
2020-02-20 17:50:25
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原创 Transition: D3 Introduction to interactive data visualization for the web
Dynamic Data 1. Ordinal Scales var xScale = d3.scale.ordinal() // used for ordinal data, typica
2020-02-20 17:50:14
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原创 DOM--Head first into HTML
how to use <html> in the html text: <: < >:> not write the <html> element rocks. But The <html> eleme
2020-02-20 17:50:14
原创 Image -- Head first into HTML
How image works behind scene 1. Browsers treat <img> elements a little differently than other HTML elements; after rea
2020-02-20 17:50:14
原创 The language of the web --Head First into HTML and CSS Chapter 1
1. Web servers have a full-time job on the Internet, tirelessly waiting for requests from web browsers. What kinds of r
2020-02-20 17:50:14
原创 Domain name, HTTP, URL-- Head first into HTML
the protocol part (usually HTTP) tells the browser the method it should use to retrieve the resource the website name (
2020-02-20 17:50:13