What does em stand for?
EM. abbreviation. Definition of EM (Entry 2 of 3) 1 electromagnetic. 2 electron microscope; electron microscopy.
What is EM and REM in CSS?
To recap, the em unit means “my parent element’s font-size” in the case of typography. … So each successive level of nesting gets progressively larger, as each has its font size set to 1.3em — 1.3 times its parent’s font size. To recap, the rem unit means “The root element’s font-size”. (rem stands for “root em”.)
What is VW in CSS?
Viewport Width (vw). This unit is based on the width of the viewport. A value of 1vw is equal to 1% of the viewport width. Viewport Minimum (vmin). This unit is based on the smaller dimension of the viewport.
How do you calculate em in CSS?
An em is equal to the computed font-size of that element’s parent. For example, If there is a div element defined with font-size: 16px then for that div and for its children 1em = 16px . If font-size is not defined explicitly, that element will inherit it from the parent element.
Whats does AM and PM mean?
From the Latin words meridies (midday), ante (before) and post (after), the term ante meridiem (a.m.) means before midday and post meridiem (p.m.) means after midday.
What is EM slang?
EM — Excuse Me. EM — Them. EM — E-Mail.
Should I use em or REM?
Use em units for sizing that should scale depending on the font size of an element other than the root. Use rem units for sizing that doesn’t need em units, and that should scale depending on browser font size settings. Use rem units unless you’re sure you need em units, including on font sizes.
What does REM do in CSS?
Many web designers and developers are familiar with the CSS rem length unit. … For readers unfamiliar with the rem unit (standing for “root em”), it provides a way to specify lengths as fractions of the root element’s font size. In practical terms, this almost always means the font size of the <html> element.
Why EM is used in CSS?
The em is simply the font size. In an element with a 2in font, 1em thus means 2in. Expressing sizes, such as margins and paddings, in em means they are related to the font size, and if the user has a big font (e.g., on a big screen) or a small font (e.g., on a handheld device), the sizes will be in proportion.
What is viewport meta?
The viewport is the user’s visible area of a web page. It varies with the device – it will be smaller on a mobile phone than on a computer screen. You should include the following <meta> element in all your web pages: <meta name=”viewport” content=”width=device-width, initial-scale=1.0″>
What is viewport width?
The width property controls the size of the viewport. It can be set to a specific number of pixels like width=600 or to the special value device-width , which is the width of the screen in CSS pixels at a scale of 100%. … The initial-scale property controls the zoom level when the page is first loaded.
What is justify content in CSS?
The CSS justify-content property defines how the browser distributes space between and around content items along the main-axis of a flex container, and the inline axis of a grid container.
How many pixels is an em?
Conversions based on your body font sizePixelsEMsPercent13px0.813em81.3%14px0.875em87.5%15px0.938em93.8%16px1.000em100.0%
How much is an em?
An em is equal to the current font-size, for instance, if the font-size of the document is 12pt, 1em is equal to 12pt. Ems are scalable in nature, so 2em would equal 24pt, . 5em would equal 6pt, etc.