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The CSS * selector is a universal selector which is used to select all elements of the HTML DOM. If you want to set a similar style for the entire document, then use the Universal selector. Syntax The syntax for CSS universal selector is as follows: Place the styles you want to set for the entire HTML document − * { /*declarations*/ } The following examples illustrate CSS universal selector − Set the margins and padding for the document To set the margins and padding settings for all the elements on the web page, set ... Read More
CSS3 provides a layout mode Flexible Box, commonly called as Flexbox. Flexbox (flexible box) is a layout mode of CSS3. Using this mode, you can easily create layouts for complex applications and web pages. It includes the container, flex items, etc. The container has the following properties − flex-direction − Set the direction of the flex items flex-wrap − Set whether the flex items should wrap or not flex-flow − It is a shorthand property for flex-wrap and flex-direction justify-content − Align the flex items align-items − Vertically align the flex items align-content − Align flex lines Set ... Read More
The CSS border property is used to define the border properties for an element. It is a shorthand for border-width, border-style and border-color. Borders for individual sides can be styled and a border-radius can also be specified. On the other hand, the CSS outline doesn’t take up space and is displayed around the border if set. It supports offset. Further, we can’t specify if individual sides should have an outline or not. By default, both borders and outlines are not displayed. Syntax The syntax for CSS border and outline property is as follows − Selector { ... Read More
Communicating between threads in Python involves exchanging data or signals between different threads of execution. There are several mechanisms available for inter-thread communication in Python, including shared data structures, synchronization primitives, and message passing. Let's explore these mechanisms in detail. Shared Data Structures Shared data structures allow threads to read and modify shared data. However, care must be taken to ensure thread safety and avoid race conditions. Some commonly used shared data structures in Python are as mentioned below. Locks (threading.Lock) − A lock provides mutual exclusion, allowing only one thread to acquire the lock at a time. It ... Read More
CSS selectors are used to selecting HTML elements by matching each element of a given pattern. We define the styles by declaring property and their value inside the selector. Syntax The syntax for declaring styles is as follows − Selector { property: value; } For example − div { height: 200px; } Above, the selector is div. The property is the height and the value 200px. Selectors CSS has simple selectors, attribute selectors, pseudo-classes, pseudo-elements and a combination of selectors through standard combinators. Here are the selectors − ... Read More
CSS Pseudo Classes are representation of special states of different elements, these classes not only depict basic elements in document but also their external factors such status, position, history, etc. Using these pseudo classes developer can even style elements which cannot be directly selected via CSS selectors. Pseudo-classes The following are some key Pseudo-classes − :active = To select the active link :checked = To select every checked element :first-child = To select the first child of an element’s parent :first-of-type = To select the first element of its parent :focus = To select the element that has ... Read More
The fonts, height, width, margins, padding, etc. are set on a web page with the length units. For example, height 100px, width 100px, font 2em, etc. These length units are categorised into Absolute and Relative Units. CSS Absolute Units The absolute length units are fixed in relation to each other. These units are used when the output format is already known. The following are some of the Absolute Length Units − Sr.No Unit & Description 1 cmcentimeters 2 mmmillimeters 3 ininches (1in = 96px = 2.54cm) 4 px *pixels (1px ... Read More
To return the height of an element, scrollable height, height including padding, border and scrollbar, then use these properties; clientHeight − The clientHeight gives the measure of the height of an element including the padding. Note that border, margin, and scrollbar height (if rendered) are not included in this. offsetHeight − The offsetHeight gives the measure of the height of an element including the vertical padding, top and bottom borders. Margin is not including here. scrollHeight − scrollHeight gives the measure of the height of an element including the vertical padding and the content which is not visible on ... Read More
With the help of CSS animations, we can create a typewriter typing and deleting effect using JavaScript. The infinite effect is also set. The custom function will get called and the words will get display with the effect. At the end, those words will get deleted using another custom function. Set a div for the text and cursor First, a parent div container is set with the element. One of the will have text and another the cursorL | Style the element A professional font is ... Read More
One or more boxes are generated for every element in a document tree after processing it under visual formatting model. A generated box has certain CSS properties associated with it and is accordingly rendered in HTML. To display elements, the following are the two common values − block − Starts on a new line. Takes the full available width Inline − Does not start on a new line. Tales only the required width The following boxes are generated in CSS − Block-level Elements and Block Boxes Anonymous block boxes Inline-level Elements and Inline Boxes Anonymous inline boxes ... Read More