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We can design a keyboard shortcut to carry out certain actions, such clicking a link or button, for Displaying the Keyboard text. When defining the element, we may utilise the accesskey attribute to specify a keyboard shortcut for that control element. This attribute must contain at least one printable character, including the accented/other characters that can be inputted using a keyboard. However, different browsers use different ways to activate the accesskey on its platform − Windows Linux INTERNET EXPLORER Alt + key Alt + Shift + key N/A MOZILLA ... Read More
To create CSS more quickly, we can give a single HTML element numerous classes and style each class separately. This method allows us to manage style application redundancy. We can apply the universal styles to many classes and the particular class-specific styles. Syntax Example In the following example we are using the style of class”Varma” to both of the paragraphs while the style of secondclass varma1 is applied to second paragraph. DOCTYPE html> .varma { font-size: larger; ... Read More
Using scripting, the canvas element is utilised to create graphics instantly (usually JavaScript). This tag is just introduced in HTML5. The element serves only as a holding area for images. To draw the visuals, you must utilise a script. There are numerous ways to draw pathways, boxes, circles, characters, and add images on a canvas. Syntax Here is the simple HTML example to depict the usage of canvas − DOCTYPE html> var c=document.getElementById("myCanvas"); var ... Read More
The permitted number intervals are determined by the HTML input type step property. Steps are numerical steps such as 0, 2, 4, 6, 8, and so on. To construct a range of valid values, combine the step attribute with the max and min properties. They establish a stepping interval on a range which is executed by moving the slider left to right or spinner up and down. If its not explicitly mentioned, default steps are assigned to various input values. Syntax Default step values for different input values are as follows − Input Type ... Read More
There are multiple correct ways to use a br tag in the web documents. In HTML, a line break is made with the tag. We don't need to close because it's an empty tag. To break a line, either or are acceptable. However, tags are used in other web documents like XHTML. But the tag must possess a space before the trailing /> as it helps XHTML to render the existing HTML user agents. Syntax Text text Following are the examples…. Example: (using ) In the following example we are using ... Read More
A DOCTYPE is nothing more than a document type declaration, which is a list of guidelines that must be attached to a certain html, xml, or sgxml online document. Because it is required for the HTML version, if the user application experiences any problems at that time, it can be quickly determined that the problem is due to incompatibility between the HTML version and the user's browser. Formats Of Doctype They are three types Normal Deprecated Legacy Tool Compatible Why Do We Use DOCTYPE? The DOCTYPE is declared before the head section in a HTML document. This ... Read More
An amplifier is an electronic circuit that is used to increase the strength of a signal in terms of voltage, current, power, etc. It accepts a weak signal at the input terminal and produces a raised signal at the output, though the output signal is identical to the input signal. The function that an amplifier performs is known as amplification. The amount of amplification performed by the amplifier is determined by a factor known as gain of the amplifier. Depending on the applied input signal and generated output signal, the amplifiers are broadly classified into two major types namely, ... Read More
Wires are the most fundamental components of an electrical and electronic system that convey electricity from one point to another. In practice, we use two major types of wires for power transmission namely solid wire and stranded wire. In this article, we will consider various parameters to understand the major differences between a solid wire and a stranded wire. But before that, let's start with some basics of solid wire and stranded wire so that it becomes easier to understand the differences between them. What is a Solid Wire? A solid wire is the type of conductor wire that ... Read More
In a control system, the process of sampling and returning the output (or a part of output) to the input end of the system is known as feedback. The feedback is used to improve the operating performance to obtain the desired output from a control system. The feedback signal may be a voltage or a current depending on the operation of the feedback sampling system. It must remember that the feedback is a unidirectional process, i.e. the sampled feedback signal always flows from output to input side. The use of feedback in a system makes it a closed loop control ... Read More
Both PLC and DCS are extensively used in industrial automation to control and automate a machine or a process. Both PLC and DCS monitor the input and field signals and take the decisions based on how they are programmed. There are many differences between PLC and DCS which we will highlight in this article. Let's start with some basics of PLC and DCS so that it becomes easier to understand the differences between them. What is a PLC? PLC stands for Programmable Logic Controller. The PLC is a microcontroller device that is used to control and automate a machine ... Read More