Coding HTML Lang Callout Overall document language commonly used encoding: ASCII, GB2312, UTF-8 Chinese encoding resolution: 1, the browser to use an encoding table to see your file <meta charset= "Utf-8" >2, this file it with what encoding
tag H1/2/3/4/5/6: Semantic-based general web pages have a maximum of only one h1p&br:p semantics for the entire paragraph, br for wrapping img:1 in paragraphs, setting width or height only, In addition, height or width will be based on the previous set of adaptive 2, the use of percentage values to replace the absolute value of the pixel, which will make the picture according to a certain proportion of the parent tag to scale the image a:1, anchor in the # without any ID, directly to the top of the page 2, address #id, jump to other pages of the specified location
HTTP Communication mode (get&post)1, if you get the data, try not to use the post mode, because the post return content is mostly not cached, relative to the path and query through get information sent by the cache to be stored for subsequent use
Compatibility <!--[if condition version]><! [endif]>
form <button> with <input type= "button": Inside the button element, you can place content, such as text or an image. This is the difference between the element and the button created by using the INPUT element.
"Review notes" HTML basics
