Web front-end development evolved from the production of web pages, and the name has obvious characteristics of the times. In the evolution of the Internet, web page production was a product of the Web1.0 era. At that time, the main content of the website was static, and the behavior of users using the website was mainly browsing. After 2005, the Internet entered the Web 2.0 era, and a large number of Web applications similar to desktop software emerged, and the front end of the website has undergone earth-shaking changes. Web pages are no longer just carrying single text and pictures. Various rich media make the content of web pages more vivid, and the software-based interactive forms on web pages provide users with a better experience. These are all based on front-end technology.
1. Parity attributes:
/*odd*/
ul li:nth-child (odd){
background-color: green;
}
< em id="__mceDel" style="font-family:'Courier New'; font-size: 12px;"> /*even*/
em>< em id="__mceDel">ul li:nth-child(even){< /em>
< em id="__mceDel">background-color: red;
}
2.
Bloggers don’t talk nonsense, and directly introduce the attributes and attribute values commonly used in CSS; attributes and values only need to be passed through, the structure of the page st
Problem A problem meaning There are n students and m test questions. Each test question has a score ai. Every student answered every question (the answers only exist in A, B, C, D, E). They don’t k
The REUSE_ALV_GRID_DISPLAY_LVC is used to display alv in the ABAP program. How to realize the line selection function? The method is as follows:
1, in the output internal table, define a C ty
What is event driven? Event-driven programming is a programming model driven by events. The module passively waits for notifications (notification), and its behavior depends on external surpris
Dojo is an open source DHTML toolkit implemented in JavaScript. The original goal of Dojo is to solve the problems encountered in the development of HTML applications. Some long-standing problems,
The front-end writing style is developed using a preprocessing language, which is the most effective and convenient to maintain
The following explains several problems encountered in the developmen
Continued from the previous article.
After four hours of hard work, cbtree is basically done. The prototype is basically completed, and the code is posted here.
Before posting the code,
In the ABAP program, REUSE_ALV_GRID_DISPLAY_LVC is called to display ALV, and there is often a need to double-click a row or a field to jump to other tcodes. Let’s briefly introduce it below.
CSS3 provides a user-select attribute to set or retrieve whether the user is allowed to select text.
Syntax
user-select:none | text | all | element.
Default value:text.
Appl
