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Add background color to jquery text box

王林

May 28, 2023 am 10:49 AM

In recent years, with the gradual upgrade of Web development technology, jQuery has become one of the indispensable tools for Web development. In jQuery, the text box is one of the frequently used UI components. When making a useful text box, setting the background color is also a very important part. Let's take a closer look at how to use jQuery to increase the background color of a text box.

First, we need to understand some basic knowledge. In HTML, text boxes are implemented through input box elements ( or ). When we need to modify the background color of the text box, we can do so by setting the CSS style of the element. In jQuery, we can use the css() function to set and obtain the CSS properties of elements. </p> <p>Next, we need to write a piece of jQuery code to achieve the functionality we want. The following is a sample code: </p><div class="code" style="position:relative; padding:0px; margin:0px;"><pre class='brush:php;toolbar:false;'>$(document).ready(function(){ $('input[type="text"]').css('background-color', '#EEEEEE'); });</pre><div class="contentsignin">Copy after login</div></div><p>In the above code, we use the $(document).ready() function to ensure that the page is loaded before executing the code to avoid some errors caused by not loading. question. Next, a selector is used to select all input box elements with a type value of "text", that is, all text boxes. Finally, the css() function is used to set the background color of the text box to #EEEEEE. </p> <p>This code is very simple, but can be applied to most situations. However, in the actual development process, we usually need to modify some parameters according to the actual situation. Here are some points we need to pay attention to: </p> <p>1. Selector: When selecting a text box, we need to pay attention to whether the type attribute of the text box is correct. If the type of the text box is not "text", you need to change the type attribute value in the selector accordingly. </p> <p>2. Color: When setting the color, we need to pay attention to whether the set color meets the requirements. It is recommended to use hexadecimal color codes or RGB color codes to ensure that colors can be displayed accurately. </p> <p>3. Position: When setting the background color, we need to pay attention to the position of the background. Normally, if the height and width of the text box are not set or are set to default values, the background color will fill the entire text box. But if the height and width of the text box change, we need to modify the position and size of the background accordingly. </p> <p>4. Events: When setting the background color, we need to consider whether we need to change the background color when certain events occur. For example, when the text box gains focus (focus) and loses focus (blur), whether its background color needs to be changed, etc. </p> <p>In addition to the above points that need attention, there are also some related techniques that can help us better master the method of setting the background color of the text box. Here are a few common techniques: </p> <p>1. Use class selectors: For different types of text boxes, we can define different classes and use class selectors to locate them, and use addclass() The function adds the corresponding class to the element, which avoids code duplication. </p> <p>2. Use variables: For reused values such as colors, we can define a variable and assign it to the attribute value to be set, which can be easily modified and maintained. </p> <p>3. Use gradient background: We can use the linear gradient function (linear-gradient) in the css attribute value to create a dynamic background color, which can make the text box look more beautiful and cool. </p> <p>In short, setting the background color of a text box is a very basic and important operation. Mastering this skill is very necessary for web developers. When using jQuery, we need to pay attention to issues such as selector selection, background color and position settings. At the same time, we can also use some techniques and special methods to make our code look more elegant and the effect more cool. </p><p>The above is the detailed content of Add background color to jquery text box. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div class="wzconShengming_sp"> <div class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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