减小窗口大小时如何增加元素宽度? [英] How do you increase element width as you decrease the window size?
问题描述
我正在编码一个适合台式机和移动设备的网站,当然最初的想法是使用百分比宽度,然后设置一个移动CSS样式表,如果屏幕小于700像素,则将元素宽度更改为100%.
问题在于当您越过障碍物时会出现结块".
所以我想,为什么不添加一个jQuery调整大小的脚本来流畅地调整元素的大小,以免产生麻烦?"
问题在于写方程式.
我知道了,但是现在我担心它会消耗多少处理能力.我不希望此功能落后于网站的其余部分.
这是我的 jFiddle:
但是,有一个问题:解决百分比后,使用的宽度变为
如您所见,增加窗口的宽度会减小该部分的宽度,从而产生非常奇怪的效果.
让我提出另一种方法:
- 当窗口小于
-
100%
宽度. -
100%= 700px
宽度,当窗口为700px
宽时. 当窗口在 -
700px
宽度. 当窗口为 -
50%= 700px
宽度. 当窗口大于 -
50%
宽度.
700px
宽时, 700px
和 1400px
宽之间时, 1400px
宽时, 1400px
宽时,也就是说,使用宽度为 700px
的恒定宽度,并使用百分比对其进行钳制:
width:700px;最小宽度:50%;最大宽度:100%;
部分{宽度:700像素;最小宽度:50%;最大宽度:100%;保证金:0自动;}部分:{之前内容: '';显示:块;高度:100px;背景色:Olivedrab;}
< section>< p>这个橄榄绿色的框在大显示器(屏幕的50%)上将是一个合理的尺寸,如果小于700像素(即移动设备),它将填满屏幕(100%).< p>过渡是平滑的.继续,尝试调整窗口大小,看看有多漂亮!</p>< p>这不像设置CSS移动屏幕配置文件那样笨拙",但是使用jQuery并不总是一个好主意.</section>
I'm coding a website to fit both desktop and mobile, and of course the initial thought is to use a percentage width and then setup a mobile CSS stylesheet that changes the element width to 100% if the screen is under 700px.
The problem with that is the "clunk" that occurs when you cross the barrier.
So I thought, "Why not add a jQuery resize script that fluidly resizes the element to avoid the clunk?"
The problem was writing the equation.
I figured it out, but now I'm worried about how much processing power it's using up. I don't want this feature to lag the rest of the website.
Here's my jFiddle: http://jsfiddle.net/jp685suz/1/
...and the equation:
var windowW = $(window).innerWidth();
var rangeMax = 1000; //Change occurs between 700px and 1000px
var rangeMin = 700;
var rangeDiff = 1000-700;
var minWidth = 50;
var dynWidth = Math.round(((1-(((rangeDiff-(rangeMax-windowW))/rangeDiff)/(100/(100-minWidth))))*100)*10)/10;
Try resizing the window to see what I mean. It's not laggy now, but add in a few high res photos in a slideshow and other jQuery functions and it isn't perfect. Of course this isn't a huge issue because most people don't resize their window very often, but I like to show off.
Can my equation be simplified? Maybe there's something built-in to jQuery that does this exact thing?
You want this:
100%
width when window is less than700px
wide.50%
width when window is more than1000px
wide.
Then, you decided to reduce the percentage linearly between 700px
and 1000px
.
However, there is a problem: when the percentage is resolved, the used width becomes
As you can see, increasing the width of the window reduces the width of the section, producing a very weird effect.
Let me propose a different approach:
100%
width when window is less than700px
wide.100% = 700px
width when window is700px
wide.700px
width when window is between700px
and1400px
wide.50% = 700px
width when window is1400px
wide.50%
width when window is more than1400px
wide.
That is, use a constant width of 700px
, and clamp it with percentages:
width: 700px;
min-width: 50%;
max-width: 100%;
section {
width: 700px;
min-width: 50%;
max-width: 100%;
margin: 0 auto;
}
section:before {
content: '';
display: block;
height: 100px;
background-color: olivedrab;
}
<section>
<p>This olive green box will be a reasonable size on a big monitor (50% of the screen), and will fill the screen (100%) if it gets smaller than 700px (i.e. mobile).</p>
<p>The transition is smooth. Go ahead, try resizing the window and see how pretty!</p>
<p>This is not as "clunky" as setting a CSS mobile screen profile, but uses jQuery which isn't always a good idea.</p>
</section>
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