Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
964 views
in Technique[技术] by (71.8m points)

css - how to make chosen select go over parent div

I created a jsFiddle which shows the chosen-select control being 'truncated' by it's parent div. And even though the overflow is set to hidden for the y-axis, it's showing the scroll bar anyway when clicking on the chosen-select control.

The height of this parent div is fixed and set to 200px, and needs to remain this way.

How can I make chosen-select go over the parent div when clicked upon?

EDIT: jsFiddle updated with more CSS. If I comment the div.content, it doesn't mess up the layout.

The chosen-select control is now on top of the 4th header. In this fiddle I can still select the chosen-select control, but in my application I can't.

Is there something I need to do for the header's positions?

EDIT2: jsFiddle. I just noticed that the chosen-select control stays on its place when heading 1/2 are sliding up. For the record, this doesn't happen in my application.

What does happen, is when you slide up the 3rd heading, chosen-select control is visible until it's slided up all the way. Unlike the other heading's, where the input's are slowly hiding.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

Simply add this CSS class:

Added border to show you the definition of your other box is staying fixed.

div.content { position:absolute; }

enter image description here

View Here: http://jsfiddle.net/SinisterSystems/e62Wu/3/

When you select position:absolute, you are effectively telling it to ignore the constraints of your fixed parent div and be able to bound outside the box.

Does this answer the question? I can elaborate further if you'd like.

EDIT:

absolute positioning will remove it from the flow of the rest of the document and treat it as if it didn't exist (it displays where you tell it to, but will not modify other element flow).

Try just adding a spacer like so:

CSS:

div.filler {
    height:30px;
}

HTML:

...
<div class="filler">
<div class="content">
     <select class="chosen-select">
     ...

FIDDLE: http://jsfiddle.net/e62Wu/7/

ANOTHER Edit:

Try this:

JS Fiddle: http://jsfiddle.net/SinisterSystems/e62Wu/10/

Add CSS:

.hider {
    position:static;
}

Add ID in HTML:

<div id="dropper" class="heading">header 3 <span class="glyphicon glyphicon-chevron-up pull-right"></div>

Add jQuery if/else:

    if($this.attr('id')==='dropper'){
       $('.content').toggleClass('hider').toggleClass('content');
    }

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...