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The browser unifies content. It forces us to adhere to standards.
Imagine a time wherein your doodles in Paper could be opened and edited freely in Illustrator then shared instantly on the web–all these would be possible if they would be speaking in discernible language.
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Sounds like booger? Nope, it’s what’s been brewing in browsers and hopefully it becomes a standard. The basic syntax is:
[code lang=”css” title=”CSS”]
div {position:sticky;}
[/code]
We already have position:fixed and it sticks!
Well, if you’re familiar with the CSS propety-value position:fixed, it fixes the position of an element relative to the viewport (and not its parent element)–so that when you scroll the screen, the element stays where you tell it to. That’s one of its caveats: it escapes any parent and becomes relative to the viewport or in other words, it escapes the layout.
position:fixed sticks but we don’t have much control over it like if we want the element to be contained to its parent element. On the other hand, position:sticky is more like position:absolute (the power of being relative to its parent) + position:fixed (the power to stay where you tell it to).
What’s more to sticky?
The proposal is that you could define its top, right, bottom, and left values to be detected relative to the viewport–and this is the time when sticky will be activated. For example:
[code lang=”css” title=”CSS”]
div {
position:sticky;
top:10px;
}
[/code]
Wherever this div is located, when you scroll the screen and this element is exactly 10px from the top of your viewport, it will become sticky so that when you scroll farther away, that element stays in your view (you can do this to position:fixed but with the help of JS for the activation part).
One last thing, I propose it be named, stick as in, position:stick.
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Whether you have an unreadable stylesheet or you want to minify/compress it for optimization purposes, Client-side CSS (De)Compressor is your friend.
Update: since the previous tool doesn’t exist anymore, here’s another tool to unminify your CSS:
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One way to set the height of an element to 100% is to absoultely-position it yet you needed a max-width for it to follow (instead of a simple width) for layout reponse purposes.
The solution is to simply set its width to 100% and set the max-width to your desired value. For example:
[code lang=”css” title=”CSS”]
div {
position:absolute;
width:100%;
max-width:1280px;
height:100%;
background-color:red;
}
[/code]
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You want to have a 100% expanding parent while still having control over the child to have a definite width?
What’s the use for this? A 100% background not interfering with the child that has width.
[code title=”HTML” lang=”html”]
<div class="container">
<div class="content">
Content
</div>
</div>
[/code]
[code title=”CSS” lang=”css”]
.container {
background-color:red;
}
.content {
margin:0 auto; /* To center the div */
max-width:960px; /* To make it responsive in viewports smaller than 960px */
}
[/code]
And you can even add box-sizing:border-box to the content!
[code title=”CSS” lang=”css”]
.content {
max-width:960px;
box-sizing:border-box; /* Don’t forget to add the vendor prefixes */
}
[/code]
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Hey, remember that time when you switched from the table layout to div layout?
This is the time to be “out with the old and in with the new”.
We’ll be leaving behind the contraption that alleviate the pains of the CSS box model.
Just to refer to that contraption, familiar with this?
[code]
<div class="module">
<div class="module-container">
<div class="module-content">
Content
</div>
</div>
</div>
[/code]
To not worry about computing widths, we apply it to module-container and the paddings, borders, and margins to module-content.
[code]
.module-container {width:75%;}
.module-content {
margin:1em;
padding:1em;
border:1px solid red;
[/code]
This way, we know that 75% is 75% and no additional values from the other parameters.
But to get rid of module-container and module-content in the HTML markup, we simply apply a border-box:box-sizing style to module.
[code]
<div class="module">Content</div>
[/code]
[code]
.module {border-box:box-sizing;}
[/code]
This will make sure that the box follows the exact width you specify no matter how many paddings and borders you apply to the same element.
For detailed readings, read Paul Irish’s * { Box-sizing: Border-box } FTW.