center

问题 I'm very new to all of this and am trying to build this website, but the main image on the page is not centering. I've tried all sorts of centering things but they don't work. Also, the width percentage is ignored too. I've readjusted margin/padding to 0. don't know what it could be. css for the picture: #pictures img{ width:"70%"; margin: 0 auto; padding-bottom: 80px; padding-top: 20px; } and the html div that has to do with it: <div id="pictures"> <img src="img/homepage.png" alt="HomePage">

问题 I want to have one table header be centered over two table columns side by side. Is this possible? 回答1: <th colspan="2">. This .</th> To extrapolate a bit... <table> <thead> <tr> <th>Single Column</th> <th colspan="2">Double Column</th> </tr> </thead> <tbody> <tr> <td>Column One</td> <td>Column Two</td> <td>Column Three</td> </tr> </tbody> </table> That should give you enough to work from. 回答2: If you only have 2 columns then I would suggest using <caption> . Otherwise, use colspan as

问题 I'm trying to horizontally center several views in a RelativeLayout that is a base. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center_horizontal" android:background="@android:color/transparent" > This isn't working. I have set centerInParent to true for one of the views and that did work. However, I can't use this solution because I have 2 views side by side that need to be

问题 I have tried aligning the text in the <select> element to the right or the center in safari. But nothing worked. text-align:center; worked in all browsers except safari. direction:rtl; and dir="rtl" did not do anything. the list is always align to the left in Safari. -webkit-appearance: none; does not help either. Please I need a solution. 回答1: For Safari text-align: -webkit-center; However, the best way to analyze the working of HTML/CSS is the Web-Inspector in Safari. More >> 回答2: If you

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: How is this put in the center using CSS? I have tried so hard to put things in the center in CSS but I just dont get it! I dont want to use <center></center> So how else is it done? 回答1: So what is the EASIEST, CLOSEST option to writing <center></center> ? Probably something like this: element { display:block; text-align:center; } References: Google Chrome stylesheet: http://codesearch.google.com/codesearch

问题 i am trying to center my css navigation bar but cant figure out why is not working, where am i doing wrong. i want it in the top center of the page. i tried margin:0 auto but it wont work here is my code: <style> ul { list-style-type: none; padding: 0; overflow:hidden; } a:link,a:visited { margin:0 auto; display:block; width: 120px; font-weight:bold; color:#FFFFFF; text-align:center; padding:4px; text-decoration:none; text-transform:uppercase; } a:hover, a:active { background-color:#7A991A; }

问题 .imgContain{ width: 100%; margin: 0 auto; position: relative; text-align: center; } .imgContain img{ width: 250px; height: 250px; float: left; } .imgContain img:hover{ opacity: 0.60; } For some reason, this will not center on my page. Any help is appreciated. 回答1: Hard to understand what you really want to happen, but here is another way using inline-block - http://jsfiddle.net/sheriffderek/29jvS/ HTML <div class="imgContain"> <img src="http://placehold.it/400x400" alt="" /> <img src="http:/

问题 I have started to study GUI applications programming based on XLib directly and I am trying to create a centered window on the screen. I don't know the usual technique used to achieve this. My code (which doesn't work) is this (I use CodeBlocks) #include <stdio.h> #include <stdlib.h> #include <X11/Xlib.h> #include <X11/Xutil.h> #include <X11/Xos.h> #include <X11/Xatom.h> #include <X11/keysym.h> #include <GL/glew.h> #include <GL/freeglut.h> int screen; Display *display; XSetWindowAttributes

问题 I know this is another centering question but I think this is different to any of the others on StackOverflow. Before anyone says it yes I have searched for a solution but found nothing. To get my point across better I've mocked up an image to give you an idea of what I would like my image to do: http://cl.ly/1q143w1P2p19322s2L0s The problem I have a fluid, full browser width layout. For this question and to explain it better my image is set at 400% width (height calculated automatically to

问题 I have a Delphi 2007 TRichEdit with several lines in it. I want to scroll the richedit vertically such that a specific line number if approximately centered in the visible/display area of the richedit. For example, I want to write the code for CenterLineInRichEdit in this example: procedure CenterLineInRichEdit(Edit: TRichEdit; LineNum: Integer); begin ... Edit.ScrollTo(...); end; procedure TForm1.FormCreate(Sender: TObject); var REdit: TRichEdit; i: Integer; begin REdit := TRichEdit.Create