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short web learning topic
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| <html> | |
| <head> | |
| <title>PHPTunnel Server Administration</title> | |
| <meta charset="UTF-8" /> | |
| <meta http-equiv="Content-type" content="text/html; charset=utf-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
| "C:\Program Files\ImageMagick-7.0.7-Q16\convert.exe" favicon.png -bordercolor white -border 0 -clone 0 -resize 16x16 -clone 0 -resize 32x32 -clone 0 -resize 48x48 -clone 0 -resize 64x64 -delete 0 -alpha off -colors 256 favicon.ico | |
| <link rel="shortcut icon" href="favicon.ico"> | |
| h1...h6 no more | |
| continiously without p tags even with enter (/n/r) | |
| different of br tag and new paraghraph | |
| compatibility with xhml | |
| strong(depricated b) and em(depricated i) and ins(depricated u) and sup and sub and del(depricated strick) and hr tags | |
| ul and li and formating inside list item | |
| ol and start="10" reversed type attributes | |
| img src alt width height align (src can be load from a url) | |
| form and input (type {text checkbox radio[should have the same name] submit} name value placeholder checked ) select option selected atrribute | |
| table tr td th thead tbody | |
| a href #id for href (tags priority is not obvious) | |
| html entities https://www.w3schools.com/html/html_entities.asp https://dev.w3.org/html5/html-author/charref https://www.w3schools.com/charsets/ref_utf_letterlike.asp | |
| iframe src width height frameborder | |
| css | |
| style attribute style= color:blue; font-size:200% % is default to paraghraph size | |
| <style type="text/css"> P {}</style> | |
| class="" .class id="" #id only once in page <span>any chunk of texts and images</span> text-decoration:underline | |
| <div>group of html element</div> background-color:pink; width:100px | |
| html-color-codes.info colorzilla | |
| float:right no default margin after floating anything is not floated is putting itself to the flow of the page so clear:both | |
| positioning means exactly where elements are position:relative relative to where whould it was be left:200px it's actually goes to right and can goes with negative think of it as a margin at the left which push it | |
| zindex: with higher index will be on top when we have overlaping and we can have 100 defferent values | |
| opacity: 1 completlity solid 0 complitly invisible | |
| position: absolute takes your object to the positioning out of the flow of the page and ingore everything behind | |
| position: fixed just like absolute but difference is the fixed positioning stays in the position when page is scrolls but absolute is not |
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