Css background color。 5 ways to use background image and color together in css

CSS Background Color Animation

If the image is being repeated also referred to as tiled then the defined location will be the starting point. Accessibility considerations with backgrounds When placing text on top of a background image or color, you should take care that you have enough contrast for the text to be legible for your visitors. But at least you get to control the exact sequence of the animation, unlike using transition. This example demonstrates two things about background images. These letters or numbers work in pairs. To proceed, select a method from the list below and follow the instructions. Have you seen websites using a background image with color, and wonder how they do it? If specifying an image, and text will be placed on top of that image, you should also specify a background-color that will allow the text to be legible if the image does not load. The property only has an effect when there is content to scroll, so we've made a demo to demonstrate the differences between the three values — have a look at also here. In the example below we have a gradient with a size and position, then an image background with no-repeat and a position, then a color. If at least one value is not a keyword, then the first value represents the horizontal position and the second represents the vertical position. The next figure shows the sixteen colors you can use by simply typing their name. This article answers that question. For information, these quantities are always between 0 and 255. However, as for the background color, don't forget that the background image does not necessarily apply to the whole page. You can see this has distorted the image. Note: Gradients can be happily mixed with regular background images. Specifying the color name The most simple and most convenient way to choose a color is to type its name. So although for these browsers, the background will not be transparent, at least there will be a background color. Take a look at the property page for to see the available syntax options. Place the image that will be at the front first and the second one at second and so on. The source for this interactive example is stored in a GitHub repository. However, this should not make you forget that you can apply a background to any item a title, a paragraph, some words in a paragraph, etc. Thus, unless the image is tiled 'background-repeat: repeat' , it may be invisible. Well, you are here because you probably want to know how to do it yourself. In the example below we have used various color values to add a background color to the box, a heading, and a element. By mixing these quantities which are the color's Red-Green-Blue components , you can get the color you want. Objective: To learn how to style the background and border of boxes. Backgrounds of elements that form a stacking context see the property are painted at the bottom of the element's stacking context, below anything in that stacking context. Please Do Not Reprint This Article This article is copyrighted. In this case we could use the property, which can take or values, to size the image to fit inside the background. See the section on for the syntax of valid color values. Yes, but in this case you'll see that it's much more practical and with a simple drawing program such as Paint, you can find the color you want. Try these values out in the example below. For example, do you remember the tag which is used to highlight certain words? So if you enter: background-position: 30px 50px;. This property is only useful if it is combined with background-repeat: no-repeat; a background that does not repeat. We have discussed most of the techniques here from very basic to advance level. It can be applied to block elements and inline elements. I had to insert such a rule because otherwise they will be black by default, rendering them invisible against a background of the same colour. What that will do is allow you to show the background color from the transparent sections of the image. When setting a background image, authors should also specify a background color that will be used when the image is unavailable. Here's how it can be used: p { opacity: 0. Definition and Usage The background-color property sets the background color of an element. Do explore the different property pages if you want to find out more about any of the features we have discussed. In the example below I have included two images. It's safer, and you don't have to worry about whether such-and-such a browser version supports that particular name. Or play with the other properties to change the position, size, or repeat values. If you do, make sure you share them in the comments below! Demo Background image with color overlay Have you heard of a background image with color overlay? I have been saying you need to use a transparent image but this is one of those methods where you can use images with a solid background. You can choose to attach the background image, display it as a mosaic pattern or not, and even position it anywhere on the page. We have added a plus sign which of course you can replace with something else. Rounded corners Rounding corners on a box is achieved by using the property and associated longhands which relate to each corner of the box. This odd story about quantities of red-green-blue again? Note: You can — but try to figure it out yourself first! Choosing the right background depends on a host of factors. In this case the actual image is just a single star. You already know about the property used to change the text color: it's color. On the other hand, mind you, if you had to give a name to each of the sixteen million colors. Try out the different values — repeat-x and repeat-y — to see what their effects are. The backgrounds will layer with the last listed background image at the bottom of the stack, and each previous image stacking on top of the one that follows it in the code. All comments are held for moderation. The tech stack for this site is fairly. Pretty neat, and a good way to toggle between background colors as the user clicks on a certain element. In the example below I have used the larger image from the example above, and used length units to size it inside the box. Want to tell us something privately, like pointing out a typo or stuff like that? What happens when text does not flow from left to right? If an element has a scrolling mechanism see 'overflow' , a 'fixed' background does not move with the element, and a 'scroll' background does not move with the scrolling mechanism. The title is written in brown Hexadecimal notation But sixteen colors is all the same a bit limited when you consider that most monitors can display sixteen million. Example code This text is highlighted in yellow. Text color Let's now turn to the vast topic of color. There are several methods for highlighting text. Positioning the background image The property allows you to choose the position in which the background image appears on the box it is applied to. Example of inheritance with the tag People tend to think that they can only change the background color of the page. If the element content is scrolled, the background does not move. Example code body { background-color:blue; }. By default the image scrolls along with the content. If the image has one of either an intrinsic width or an intrinsic height and no intrinsic aspect ratio, then the missing dimension is assumed to be the size of the rectangle that establishes the coordinate system for the 'background-position' property. Simply put, it's a combination of letters and numbers that specify a color. You can create gradient color manually like this body { background: linear-gradient green, blue ; } Or you can use some. White text on a black background But you asked for the text of the tag to be written in white, and all the paragraphs and titles took this color. Controlling background-repeat The property is used to control the tiling behavior of images. Indeed, corresponds to the whole web page, so by changing its background color you'll change the color background of the page. I tend to use numbers for all colours other than a few common ones eg, white and black , and often even for those old habits die hard. The opacity property The very simple opacity property is used to specify the opacity level which the reverse of transparency. We will use Opacity and background property to create it. All tiling covers the , and areas of a box. The Background-Color Property You can change the background colour of any part of a web page by creating a background-color rule. Note: Several sections of this specification have been updated by other specifications. Because I always use this Alfa coordinate as decimal 0. You can also put a background image behind titles, paragraphs, etc. From the image below: How would I make the text and icons inside the white boxes be the same color as the background of the big box? We know that the color overlays are nice fun to add impressive addition to an image or image gallery. Anyone who has used a design tool has seen a color picker similar to this one: Note the hex code in the lower middle. I also leverage for extra functionality and for local development. A background-color extends underneath the content and padding box of the element. The main content column is white. Even if the image is fixed, it is still only visible when it is in the content, padding or border area of the element. Such backgrounds must also be anchored at the same point as they would be if they were painted only for the root element. You can play with the values to change the corners. So a child div wouldn't be able to inherit the background-color of it's parent for it's color property. In this case, they will appear highlighted as if marked with a marker pen. Examples might be simplified to improve reading and basic understanding. As with the hexadecimal notation, to choose a color, you have to define a quantity of red, green and blue. For example, with a value pair of '2cm 1cm', the upper left corner of the image is placed 2cm to the right and 1cm below the upper left corner of the padding box. To achieve this, I set another background-color rule for that column. Try some different gradients in the example below. Backgrounds may be colors or images. Since I specified that the rule is to be applied to the body selector, it will affect the entire page by default, unless it is overridden in specific portions of the page. You can replace it with your text without adding additional code. In the example below we have two boxes — one has a background image which is larger than the box, the other has a small image of a star. Background properties allow authors to position a background image, repeat it, and declare whether it should be fixed with respect to the or scrolled along with the document. Take the following code from my as an example. We can set a border for all four sides of a box with :. Values The uniform color of the background. Praesent egestas risus sed nunc rutrum dictum. Color contrast ratio is determined by comparing the luminance of the text and background color values. Thus, the color is visible in the transparent parts of the image. Borders When learning about the Box Model, we discovered how borders affect the size of our box. Notes Notes In Internet Explorer 8 and 9, there is a bug where a computed background-color of transparent causes click events to not get fired on overlaid elements. As you know, the tag contains among others the paragraph and title tags. In fact, if you were to look at the again, you will see that such an override has occurred there, since only the side column and the borders are orange. Example code This whole paragraph of text is highlighted in yellow. If the background image is fixed within the viewport see the property , the image is placed relative to the viewport instead of the element's padding box. You can create a gradient then copy and paste out the source code that generates it. The first way I'll show you is the hexadecimal notation. Just check the demo and download the source code. A length L aligns the top left corner of the image a distance L to the right of for horizontal or below for vertical the top left corner of the element's padding box. Browser Support The background-color property is supported in all browsers in current use. Note: The default background-position value is 0,0. Sizing the background image In the example above, we have a large image that has ended up being cropped as it is larger than the element it is a background of. Two lengths or percentages may be used as a value, the first value defining the horizontal radius, and the second the vertical radius. We will walk through some examples in this guide — Read on to find out! The good news is, it does work on visibility, opacity, and background color. We'll publish all comments that are on topic, not rude, and adhere to our. So it comes down to your preference when to use which technique. You can see the result in the next figure. You can create some really cool image effects without any image editor. Values have the following meanings: repeat The image is repeated both horizontally and vertically. Tip: Use a background color and a text color that makes the text easy to read. I sometimes just want to have a small block of color! Background images In the following examples, I'm going to change the background image of the page. In this case some of the image is likely to end up outside the box. The property is a that sets the following properties in a single declaration: , , , , , , , and. Example result Here is an example of highlighted textusing the tag. Let's use it again here: Who turned off the lights? You can use keywords such as top and right look up the others on the page :. If you'd like to contribute to the data, please check out and send us a pull request. If included once, it sets both and. Above, for example, image1's background-repeat value will be no-repeat. Gradient backgrounds A gradient — when used for a background — acts just like an image and is also set by using the property. So you have to choose a value between 0 and 1. The following examples set the background color for a page and various elements according to a hexadecimal value f5f5f5. I've used since day one all the way up to , a decision I'm. Example result This text is highlighted text in yellow. With a value of less than 1, it's transparent. Background attachment Another option we have available for backgrounds is specifying how they scroll when the content scrolls. For example, with ff6600, you can remove one character from each pair. It is important to choose the image carefully so that it does not hamper the visibility of the foreground, particularly any text. Aliquam feugiat nulla vitae suscipit faucibus. Some drawing software programs such as Photoshop, and , let you specify the colors in hexadecimal. To demonstrate the stacking order, try switching which background image comes first in the list. Try adding a background-color property to the example above to see that in action. All it takes is to add another infinite to the animation, or you can give a specific number for it to loop. Like Open the thumbnail to open a big image. Note that there is only one viewport per view. By default the background image is repeated on both the horizontal and vertical axes. If the image has one of either an intrinsic width or an intrinsic height and an intrinsic aspect ratio, then the missing dimension is calculated from the given dimension and the ratio. If only one value is specified, the second value is assumed to be 'center'. It will always remain in the same position on the screen. If you have a bit of talent unlike me , you'll no doubt be able to make your web page look quite nice. If you apply the opacity property to an item of the page, all the content of this item will be made transparent even images, other blocks inside, etc. However, when using short 3-4 letter words, the background color is the length of the whole page. Background properties are not inherited, but the parent box's background will shine through by default because of the initial 'transparent' value on. Although it is commonly used on the Web, there's also another method that we're going to see later. If the image has no intrinsic ratio either, then the dimensions must be assumed to be the rectangle that establishes the coordinate system for the property. Indeed, I wanted to take this opportunity to talk to you about this. If you'd like to contribute to the interactive examples project, please clone and send us a pull request. This is not so: you can change the background of any item: your titles, your paragraphs, certain words, etc. In the example below we have used a different border style for the four sides of my box. For example, with a value pair of '0% 0%',the upper left corner of the image is aligned with the upper left corner of the padding box. Please do not reproduce or distribute this article in whole or part, in any form. For example, to make all four corners of a box have a 10px radius:. There is no database involved, so just follow through each of the files contained within. If the image contains information critical to understanding the page's overall purpose, it is better to describe it semantically in the document. Brr, it's all black on this website; it's a rather disturbing atmosphere don't you think? Example code Here is an example of highlighted text using the tag. Border colors and styles are set with the. Suppose you have a mad desire to write your titles in pink only supposing. If using multiple backgrounds, you need to specify all of the properties for the first background, then add your next background after a comma. To specify the web page background color, you have to work with the tag. Using the background shorthand property As I mentioned at the beginning of this lesson, you will often see backgrounds specified using the property. There are a number of ways to find the right hex codes. If you have a specific paragraph that you want to highlight, you can even just put the rule on the style attribute of that paragraph, like this: This paragraph has white text over a black background. If you specify a background color in addition to a background image then the image displays on top of the color. So if you don't want to enter fixed, you can remove it without any problem. The local value fixes the background to the element it is set on, so when you scroll the element, the background scrolls with it. A percentage X aligns the point X% across for horizontal or down for vertical the image with the point X% across for horizontal or down for vertical the element's padding box. The root element does not paint this background again. The address of the image must be specified relative to the. The background of an element is the total size of the element, including padding and border but not the margin. Negative and values are allowed. Given a valid declaration, the property first sets all the individual background properties to their initial values, then assigns explicit values given in the declaration. However, if you don't specify anything in particular as we did earlier , then your titles will inherit the white color. The image will be unique on the page. For example, transition: background-color 1s ease 0. Let's be clear, this doesn't just work for the color alone. With a value pair of '14% 84%', the point 14% across and 84% down the image is to be placed at the point 14% across and 84% down the padding box. Although there are other informal colors, I won't bother showing them to you as they don't necessarily work the same way in all browsers. You should always start by writing a hash character followed by six letters or digits from 0 to 9 and A to F. Tip With the same code, you could also highlight one or more words within a paragraph to draw attention to a specific section of the text. To simplify things, I advise you to place the background image in the same folder as the. In this lesson we will look at how to use borders creatively. In the two boxes respectively we have a linear gradient which is stretched over the whole box, and a radial gradient with a set size, which therefore repeats. This is default initial Sets this property to its default value. The answer is that the smaller numbers of values will cycle — in the above example there are four background images but only two background-position values. They're easier to remember than hex codes, and there are. The following code displays a div with red background: Our recommendation is to use three-character hexadecimal notation i. In order to meet current , a ratio of 4. We have another div with class name overhide and we place it inside the parent div. A value pair of '100% 100%' places the lower right corner of the image in the lower right corner of the padding box. It is rendered behind any that is specified, although the color will still be visible through any transparency in the image. Example s : In the first rule of the following example, only a value for has been given and the other individual properties are set to their initial value. If it is included twice, the first occurrence sets , and the second sets. Once upon a time in the stone age of the Internet, doing color animations will mean writing crazy scripts and fighting digital monsters. As default, the text appears on a yellow background. The tiling and positioning of the background-image on inline elements is undefined in this specification. We're now going to look at the properties directly or indirectly related to the color. With a value of 1, the background is completely opaque in the same way as above. For example: body { background: white url paper. We have set the value to no-repeat so you will only see one star. The shorthand color values take the format rgb, where r is the amount of red, g is the amount of green in the color, and b is the amount of blue. The first two digits specify the quantity of red, the next two the quantity of green and the last two the quantity of blue. You can add a link and wrap it over the span tag if you want to add additional functionality. It's actually easy to understand and intuitive. This is important primarily for screen readers, as a screen reader will not announce its presence and therefore convey nothing to its users. Play around with these, using any available value. For example, keyframes move { from: {left:0%} to: {right:0%} } block{ animation: move 5s } But just how do we use them?。 。 。 。 。

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Color and background

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CSS: Set color to parent's background

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CSS: background

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5 ways to use background image and color together in css

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CSS background

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