Looking for:
Microsoft word 2016 cheat sheet pdf free |
A Complete Guide to Flexbox | CSS-Tricks - CSS-Tricks.Microsoft word 2016 cheat sheet pdf free
A flex container expands items to fill available free space or shrinks them to prevent overflow. Most importantly, the flexbox layout is direction-agnostic as opposed to the regular layouts block which is vertically-based and inline which is horizontally-based.
While those work well for pages, they lack flexibility no pun intended to support large or complex applications especially when it comes to orientation changing, resizing, stretching, shrinking, etc.
Note: Flexbox layout is most appropriate to the components of an application, and small-scale layouts, while the Grid layout is intended for larger scale layouts. Since flexbox is a whole module and not a single property, it involves a lot of things including its whole set of properties. Please have a look at this figure from the specification, explaining the main idea behind the flex layout.
Items will be laid out following either the main axis from main-start to main-end or the cross axis from cross-start to cross-end. This defines a flex container; inline or block depending on the given value. It enables a flex context for all its direct children.
This establishes the main-axis, thus defining the direction flex items are placed in the flex container. Flexbox is aside from optional wrapping a single-direction layout concept. Think of flex items as primarily laying out either in horizontal rows or vertical columns. By default, flex items will all try to fit onto one line. You can change that and allow the items to wrap as needed with this property. There are some visual demos of flex-wrap here.
The default value is row nowrap. This defines the alignment along the main axis. It helps distribute extra free space leftover when either all the flex items on a line are inflexible, or are flexible but have reached their maximum size. It also exerts some control over the alignment of items when they overflow the line. Note that that browser support for these values is nuanced. MDN has detailed charts. The safest values are flex-start , flex-end , and center.
There are also two additional keywords you can pair with these values: safe and unsafe. This defines the default behavior for how flex items are laid out along the cross axis on the current line. Think of it as the justify-content version for the cross-axis perpendicular to the main-axis. The safe and unsafe modifier keywords can be used in conjunction with all the rest of these keywords although note browser support , and deal with helping you prevent aligning elements such that the content becomes inaccessible.
Note: This property only takes effect on multi-line flexible containers, where flex-wrap is set to either wrap or wrap-reverse. A single-line flexible container i. The gap property explicitly controls the space between flex items. It applies that spacing only between items not on the outer edges.
The behavior could be thought of as a minimum gutter, as if the gutter is bigger somehow because of something like justify-content: space-between; then the gap will only take effect if that space would end up smaller. It is not exclusively for flexbox, gap works in grid and multi-column layout as well. By default, flex items are laid out in the source order. However, the order property controls the order in which they appear in the flex container.
This defines the ability for a flex item to grow if necessary. It accepts a unitless value that serves as a proportion. It dictates what amount of the available space inside the flex container the item should take up. If all items have flex-grow set to 1 , the remaining space in the container will be distributed equally to all children. If one of the children has a value of 2 , that child would take up twice as much of the space either one of the others or it will try, at least.
This defines the default size of an element before the remaining space is distributed. It can be a length e. If set to auto , the extra space is distributed based on its flex-grow value. See this graphic. This is the shorthand for flex-grow, flex-shrink and flex-basis combined.
The second and third parameters flex-shrink and flex-basis are optional. It is recommended that you use this shorthand property rather than set the individual properties. The shorthand sets the other values intelligently. This allows the default alignment or the one specified by align-items to be overridden for individual flex items. Note that float , clear and vertical-align have no effect on a flex item.
Flexbox requires some vendor prefixing to support the most browsers possible. Perhaps the best way to handle this is to write in the new and final syntax and run your CSS through Autoprefixer , which handles the fallbacks very well. This relies on the fact a margin set to auto in a flex container absorb extra space. So setting a margin of auto will make the item perfectly centered in both axes. Consider a list of 6 items, all with fixed dimensions, but can be auto-sized.
We want them to be evenly distributed on the horizontal axis so that when we resize the browser, everything scales nicely, and without media queries. Everything else is just some styling concern. Below is a pen featuring this example. Be sure to go to CodePen and try resizing your windows to see what happens.
Imagine we have a right-aligned navigation element on the very top of our website, but we want it to be centered on medium-sized screens and single-columned on small devices. Easy enough. What about a mobile-first 3-columns layout with full-width header and footer.
And independent from source order. This browser support data is from Caniuse , which has more detail. A number indicates that browser supports the feature at that version and up. Flexbox is certainly not without its bugs. Otherwise: could you build this layout using flexbox?
Alex Yes, you can. In the same manner that you do so with non-flex grids, apply a negative margin-left to the grid wrapper, and apply that same value as padding left to all grid columns. Alex Lawrence That has little do with flexbox itself.
Negative margins are rubbish. Using :not selectors, however, will be unscalable, and you will lose IE8 support less of an issue now. How about managing 3rds, 5ths, 6ths, 12fths, etc. Perhaps not ideal, but they solve a complex problem elegantly. More here. For your final example, how would you make the content center row take up all available space, so that at minimum, the footer is pinned to the bottom of the window — but if the content area has more content, the footer will push below, allowing scrolling.
Lawrence at the point of using flex does IE8 not become a problem already? I think the grid solution could be solved with nth-child. Then using media queries to make appropriate adjustments based on the users screen. Your last example only works with no content.
If you put some text in Aside1 the 3 column Layout is gone. Josh McCullough its pretty simple to achieve that, better and easier then ever before. Just use the flex property and set it to 1, for e. Look an eye out for grid to make a proper entry into the browsers and we would be having magic on our plates in terms of layouts.
Space-between would spread all items in the last row across the whole width which is not what Alex wanted. Your example specifies. This really threw me off for a while…wondering why the boxes werent the widths I expected. Everything still looks great in Chrome. At the moment this is not supported, but I think it should be because everything that was left out here had the recommended syntax.
Good explanation of the need for multiple vendor-prefixed rules here. See code examples with comments…. They arguably much more importantly separate out implementation differences. What would happen if we just had one unprefixed word for a feature, and the syntax of its attributes was consistent across browsers, but the rendering behavior was different?
Once everyone has a correct implementation, then the prefixes can be dropped. Regarding the example with the 6 items of fixed dimensions to be evenly distributed — using the justify-content: space-around; rule:. This is something that can be done with the grid layout module, but it is not supported by the browsers yet.
Coolcat You mention that this can be done with tables and calc — is this so — even if you have a dynamic number of items?? For the items to wrap up onto the second line you can use the flex-wrap: wrap, then to align the items on the second line you can manipulate them with align-content.
Daniel Sorry, I misunderstood your question. This is indeed a thing that could be added.
No comments:
Post a Comment