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css 基础2

由 只愿长相守 提交于 2019-12-01 17:29:41
css 基础2 一.margin相关技巧 1、设置元素水平居中： margin:x auto; 2、margin负值让元素位移及边框合并 盒子重合现象 ：两个盒子margin垂直边距的高度等于两个发生合并的边距的高度中的较大者。 解决方案如下： 1、使用这种特性（特殊布局用到） 2、设置一边的外边距，一般设置margin-top（布局常用） 3、将元素浮动或者定位 代码如下： <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>margin相关技巧</title> <style type="text/css"> body{margin: 0} .box{ width: 202px; height: 156px; background-color: gold; /* 设置元素水平居中： margin:x auto; */ margin: 50px auto 0; } .box div{ width: 202px; height: 30px; border: 1px solid green; background: pink; margin: -1px; } </style> </head> <body> <div class="box"> <div>1</div> <div>2</div>

Use full width excluding overflow scrollbar with “position: absolute”

由 蹲街弑〆低调 提交于 2019-12-01 17:27:58
I would like to have a small red div with full width at a fixed top position, inside another div that has overflow: scroll . I hope the jsFiddle makes it clear: http://jsfiddle.net/mCYLm/2/ . The issue is that the red div is overlapping the scrollbar. I guess right: 0 means the right hand side of div.wrapper ; it does not subtract the scrollbar of div.main . When I move the overflow: scroll into div.wrapper , then the red banner has the right size ( fiddle ). However, it is not at a fixed position anymore (scrolling down makes the banner scroll up). How can I achieve the following two things

CSS styling to show end of single text string [duplicate]

由 落花浮王杯 提交于 2019-12-01 16:58:14
问题 This question already has answers here : How can I align text to the right in a div so its beginning is cut down with overflow:hidden? (2 answers) Closed last year . I'm just learning CSS: this seems like a simple task but I've spent a while researching and can't get it to work: Say I have a long text string -- how do you get all the text to show on one line and with a certain width, but limit what is shown to the end of the string? .demo { border: 1px solid red; white-space: nowrap; max

Overflow with absolute/relative positioning layout

由 落爺英雄遲暮 提交于 2019-12-01 16:39:47
问题 for quite some time I'm fiddling around with a specific layout matter that I'm obviously approaching the wrong way. Here is the approach broken down to its basic components: <!DOCTYPE html> <html> <head> </head> <body> <div class="stretched"> <div class="header">SOME HEADER</div> <div class="someControls"> <input type="button" value="click me"/> <input type="button" value="no me"/> </div> <div class="inner"> some text... </div> </div> </body> </html> with the following css: .stretched {

Does BigInteger ever overflows?

由 余生颓废 提交于 2019-12-01 15:23:21
The API docs says All of the details in the Spec concerning overflow are ignored, as BigIntegers are made as large as necessary to accommodate the results of an operation. Does this implies BigInteger will never overflow assuming you have sufficient memory available ? If so why do we let some "type" overflow and some don't ? As the language evolves, will it favor the types which hide overflowing mechanism from the programmers ? BigInteger will never overflow assuming you have enough memory to handle it. To answer your question of why we let some types overflow and not others: BigInteger is not

Why do “inline-block” elements in a “nowrap” div overflow?

由 空扰寡人 提交于 2019-12-01 15:12:58
The following code causes #headline to overflow #wrapper and I do not understand why this is happening. HTML: <div id="wrapper"> <div id="logo"> <img src="/test.png"> </div> <div id="headline"> <h1>This headline overflows its wrapping div. # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #</h1> </div> </div> CSS: #wrapper { background: #fea; white-space: nowrap; width: 50%; } #logo { display: inline-block; vertical-align: middle; } #logo img { width: 6em; } #headline { display: inline-block

Why do “inline-block” elements in a “nowrap” div overflow?

由 时光怂恿深爱的人放手 提交于 2019-12-01 14:05:18
问题 The following code causes #headline to overflow #wrapper and I do not understand why this is happening. HTML: <div id="wrapper"> <div id="logo"> <img src="/test.png"> </div> <div id="headline"> <h1>This headline overflows its wrapping div. # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #</h1> </div> </div> CSS: #wrapper { background: #fea; white-space: nowrap; width: 50%; } #logo {

Google Chrome Bug - Overflow:auto | scroll doesn't work

由 我们两清 提交于 2019-12-01 12:50:06
Here's my site in Chrome with he text running outside the box: And here it is in .IE with no problem Here's the relevant CSS .section { height: 1000px; width: 670px; border: thick solid rgb(51,97,120); border-radius: 15px; text-align: center; padding: 0px; background-image: url(Images/diag_pattern.png); background-color: rgb(255,255,255); overflow:auto; white-space:nowrap; text-overflow:ellipses; } Very annoying? Is there anything I can do. An alternative way to show my results? You need to edit both your section and textarea classes: .section { height: 1000px; width: 670px; border: thick

Google Chrome Bug - Overflow:auto | scroll doesn't work

由 强颜欢笑 提交于 2019-12-01 11:17:05
问题 Here's my site in Chrome with he text running outside the box: And here it is in .IE with no problem Here's the relevant CSS .section { height: 1000px; width: 670px; border: thick solid rgb(51,97,120); border-radius: 15px; text-align: center; padding: 0px; background-image: url(Images/diag_pattern.png); background-color: rgb(255,255,255); overflow:auto; white-space:nowrap; text-overflow:ellipses; } Very annoying? Is there anything I can do. An alternative way to show my results? 回答1: You need

Floating div not displaying background color when i am not using overflow?

由 梦想与她 提交于 2019-12-01 10:43:57
HTML : <div id="wrapper"> <div id="content"> <div id="slider"></div> <div id="left"></div> <div id="right"></div> </div> </div> CSS : #wrapper { background:blue; width:990px; margin:0 auto; } #content { width:990px; height:auto; } #slider { width:990px; /* slider jquery */ height:auto; } #left { float:left; width:490px; } #right { float:right; width:490px; } Live demo: Tinkerbin But in left and right div blue color is not displaying , If i am giving overflow:hidden to wrapper then its work fine. Is it necessary to give overflow to parent of floating div? why? One of the common problems we face
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