对于任何浏览器(跨浏览器),将 div 定位在中心和左右

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【中文标题】对于任何浏览器(跨浏览器),将 div 定位在中心和左右【英文标题】:Positioning of divs in center and right and left for any browser(cross-browser) 【发布时间】:2019-03-18 05:45:15 【问题描述】:
Three div panels:-
1) (div-B) one div with max-width = 500px and min-width=400px should always on 
    the center of all browsers.
2) (div-A) one div should show and hide on the left of (div-B) having min-width 
   = 200px and max-width= 300px;
3) (div-C) one div should show and hide on the right of (div-B) having min-width 
   = 200px and max-width= 300px;

div-A 和 div-C 的显示和隐藏应该是这样的方式,它不应该将 div-B 从它的位置移动,但是,它可以达到它的最大宽度和最小宽度可用。 div-B 应该始终位于所有浏览器的中心。

页面布局:-

Header
<--Left button here                                       right button here-->
to open div-A panel                                       to open div-c panel
(basically a dropdown)                                  (basically a dropdown)


         Left Panel <---20px---> Center Panel <---20px---> Right Panel   
         (div-A)                  (div-B)                     (div-C)    

1) (div-A && div-B), (div-B && div-C) having margin 20px in between always.
   div-A should grow towards left and div-c should grow towards right relative to div-B(min-width and 
   max-width availability).
2) div-B should not move to right or left when div-A and div-C should hide. 
 But div-B should grow towards its left or right keeping div-B fixed to 
  center of browser window and tries to achieve its max-width(keeping center 
 axis fixed) if space available towards right or left.

<header>
//show hide button for div-A
<div class="div-A-button">Dropdown button A</div>
//show hide button for div-C
<div class="div-C-button">Dropdown button C</div>
</header>

<main>
<div class="panel div-A">Panel A </div>  //show and hide using div-A-button
<div class="panel div-B">Panel B </div>  //fixed always show
<div class="panel div-C">Panel C </div>  //show and hide using div-C-button
</main>

这里是 stackblitz 链接:https://stackblitz.com/edit/angular-tpj35u?file=src%2Fapp%2Fapp.component.html

【问题讨论】:

“所有浏览器”是什么意思?有许多不同的方法可以解决您的问题,但是如果没有您想要支持的浏览器的信息,没有人可以给出一个好的答案。 :) 表示跨浏览器/任意浏览器。 【参考方案1】:

您可以使用 CSS 网格。我想我已经理解了你的布局。让我知道下面的例子是否正确。

main 
  border: 1px solid;
  display: grid;
  grid-template-columns: minmax(200px, 300px) minmax(400px, 500px) minmax(200px, 300px);
  grid-gap: 20px;
  justify-content: center;


main>div 
  background: yellow;
  text-align: center;
  padding: 1em;


.div-B 
  grid-column: 2;
<main>
  <div class="panel div-A">Panel A </div>
  <div class="panel div-B">Panel B </div>
  <div class="panel div-C">Panel C </div>
</main>

【讨论】:

【参考方案2】:

这可以使用flex

<!DOCTYPE html>
<html>
<head>
  <style>
      .container 
          display: flex;
          flex-direction: row;
          justify-content: center;
          align-items: center;
          flex: 1;
          overflow: hidden;
      

      .classA 
          display: flex;
          flex-direction: row;
          justify-content: center;
          align-items: center;
          min-width: 200px;
          max-width: 300px;
          height: 200px;
          width: 300px;
          background-color: red;
      
      .classB 
          display: flex;
          flex-direction: row;
          justify-content: center;
          align-items: center;
          flex: 1;
          min-width: 400px;
          max-width: 500px;
          width: 500px;
          height: 200px;
          margin-left: 20px;
          margin-right: 20px;
          background-color: yellow;
       
      .classC 
          display: flex;
          flex-direction: row;
          justify-content: center;
          align-items: center;
          min-width: 200px;
          max-width: 300px;
          height: 200px;
          width: 300px;
          background-color: blue;
       
      </style>
</head>
<body>
  <div class="container">
    <div class="classA">A</div>
    <div class="classB">B</div>
    <div class="classC">C</div>
  </div>
</body>
</html>

【讨论】:

【参考方案3】:

好的,据我了解您的问题,容器div-B 应始终居中,无论来自div-A odr div-B。我改变了两个主要的事情:

    我将样式更新为 flexbox,到目前为止,它对浏览器的支持非常好。 将隐藏类从display:block更改为visibility:hidden,因此空闲空间仍被阻止为div-B 为了更好的视觉理解,我在 .panel 容器中添加了一个红色边框

全屏查看示例,看看.div-B 是否灵活

$(".pull-left").click(function() 
  $(".div-A").toggleClass("hide")
);

$(".pull-right").click(function() 
  $(".div-C").toggleClass("hide")
);
p 
  font-family: Lato;


.show 
  display: block;


.hide 
  visibility: hidden;


header 
  height: 40px;


div.pull-left 
  float: left;
  width: 100px;
  display: block;
  color: red;
  text-align: center;
  border: 1px solid #ccc;


div.pull-right 
  float: right;
  width: 100px;
  text-align: center;
  border: 1px solid #ccc;


.row 
  display: flex;
  justify-content: space-between;
  align-items: center;


.row .panel 
  border: 1px solid red;
  flex: 0 0 200px;


.row .panel.div-B 
  flex: 1;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- <hello name=" name "></hello> -->
<header>
  <div class="pull-left" (click)='showHide("A")'>button-div-A</div>
  <div class="pull-right" (click)='showHide("C")'>button-div-C</div>
</header>

<main>
  <div class="row">
    <div class="panel div-A">Panel A </div>
    <div class="panel div-B">Panel B</div>
    <div class="panel div-C">Panel C </div>
  </div>
</main>

【讨论】:

【参考方案4】:

使用 CSS Grid 并为所有可能的情况定义 grid-column 属性,使用父元素上的实用程序类。居中main,而不是divs。 下面这个 sn-p 应该可以工作,代码语法与 Node.js 版本有点不同。查看整页。

var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) 
    $scope.showA = false;
    $scope.showB = false;
    $scope.showHide = function(val) 
      if(val === 'A')
        this.showA = !this.showA;
      
      else if(val === 'C')
        this.showC = !this.showC;
      
    ;
);
p 
  font-family: Lato;

div.panel.show
  display: block;


div.panel.hide
    display: none;

header
  height:40px;

div.pull-left
  float:left;
  width:100px;
    display: block;
    color: red;
  text-align: center;
  border:1px solid #ccc;


div.pull-right
  float:right;
  width:100px;
  text-align: center;
  border:1px solid #ccc;

main
  display: table;
  margin: auto;

div.row
  width:100%;
  float: left;
  display: grid;
  grid-template-columns: minmax(200px, 300px) minmax(400px, 500px) minmax(200px, 300px);
  grid-gap: 20px;

.div-A 
  display: none;
  grid-column: 1 / span 1;
  background-color: blue;

.div-B 
  display: block;
  grid-column: 1 / span 3;
  background-color: red;

.div-C 
  display: none;
  grid-column: 3 / span 1;
  background-color: yellow;

.showA .div-A 
  display: block;

.showA .div-B 
  grid-column: 2 / span 2;

.showC .div-B 
  grid-column: 1 / span 2;

.showA.showC .div-B 
  grid-column: 2 / span 1;

.div-C 
  display: none;

.showC .div-C 
  display: block;
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<!-- <hello name=" name "></hello> -->
<div ng-app="myApp" ng-controller="myCtrl">
<header>
<div class="pull-left" ng-click="showHide('A')">button-div-A</div>
<div class="pull-right" ng-click="showHide('C')">button-div-C</div>
</header>

<main>
<div class="row" ng-class="'showA': showA, 'showC': showC ">
  <div class="panel div-A">Panel A </div>  
  <div class="panel div-B">Panel B </div>  
  <div class="panel div-C">Panel C </div>
</div>
</main>
</div>

可能的解决方案

https://stackblitz.com/edit/angular-4jdpca - 根据需要更改颜色。

参考文献

https://css-tricks.com/snippets/css/complete-guide-grid/

【讨论】:

【参考方案5】:

您可以使用 minmax() CSS 函数来固定宽度,并隐藏一个 div 以使中心 div 保持在页面中心使用 css 的 visibility : hidden 属性这只会将其隐藏在页面中,但会将其保留在 DOM 和因此,如果侧面的两个 div 中的任何一个在点击时被隐藏,则中心 div 不会受到影响

working code

<div id="container">
    <div (click)="visibility = !visibility" [ngClass]="'hide' : visibility">
     <select style="width :-webkit-fill-available;"></select>
      at most 300 pixels
    </div>
    <div>20px</div> //separator
    <div>
    <div style="position:absolute">
      Item with 400 to max 500px width
    </div>
  </div>
    <div>20px</div>    //separator
    <div  (click)="visibility1 = !visibility1" [ngClass]="'hide' : visibility">
        at most 300 pixels.
    </div>
  </div>

css

#container 
  display: grid;
  grid-template-columns: minmax(200px, 300px) 20px minmax(400px, 500px) 20px minmax(200px, 300px);
  box-sizing: border-box;
  height: 200px;
  background-color: #8cffa0;
  width: 100%;


#container > div 
  background-color: #8ca0ff;
  border: 1px dotted red;
 
 .hide 
   visibility: hidden;
 

【讨论】:

【参考方案6】:

我已经为您的要求做了一个简单的方法,请检查下面的sn-p。希望它是你所要求的。

var divchecker = 0;

$('.pull-left').click(function() 
    //you are hiding the Div A now
    divchecker = divchecker+1;
    $('.div-A').hide();
    $('.pull-left2').show();
    $('.pull-left').hide();
    $('.gridsection').css('grid-template-columns', '70% auto');
    if (divchecker == 2)
      $('.gridsection').css('grid-template-columns', '100%');
    
);
$('.pull-right').click(function() 
    //you are hiding the Div C now
    divchecker = divchecker+1;
    $('.div-C').hide();
    $('.pull-right2').show();
    $('.pull-right').hide();
    $('.gridsection').css('grid-template-columns', 'auto 70%');
    if (divchecker == 2)
      $('.gridsection').css('grid-template-columns', '100%');
    
);

$('.pull-left2').click(function() 
    //you are showing the Div A now
    divchecker = divchecker-1;
    $('.div-A').show();
    $('.pull-left2').hide();
    $('.pull-left').show();
    $('.gridsection').css('grid-template-columns', 'auto 60% auto');
    if (divchecker == 2)
      $('.gridsection').css('grid-template-columns', '100%');
    
);
$('.pull-right2').click(function() 
    //you are showing the Div C now
    divchecker = divchecker-1;
    $('.div-C').show();
    $('.pull-right2').hide();
    $('.pull-right').show();
    $('.gridsection').css('grid-template-columns', 'auto 60% auto');
    if (divchecker == 2)
      $('.gridsection').css('grid-template-columns', '100%');
    
);
main 
  border: 1px solid;
  display: grid;
  grid-template-columns: auto 60% auto;
  grid-gap: 20px;


main>div 
  background: #eee;
  text-align: center;
  padding: 1em;


header
  height:40px;

div.pull-left,div.pull-left2
  float:left;
  width:100px;
    display: block;
    color: red;
  text-align: center;
  border:1px solid #ccc;
  background-color:yellow;
  cursor: pointer;
  font-weight:bold;
  border-radius: 5px;


div.pull-right,div.pull-right2
  float:right;
  width:100px;
  text-align: center;
  border:1px solid #ccc;
  background-color:yellow;
  font-weight:bold;
  border-radius: 5px;
  cursor: pointer;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<header>
  <div class="pull-left">Hide-div-A</div>
  <div class="pull-left2" style="display:none;">Show-div-A</div>
  <div class="pull-right">Hide-div-C</div>
  <div class="pull-right2" style="display:none;">Show-div-C</div>
</header>

<main class="gridsection">
  <div class="panel div-A">Panel A</div>
  <div class="panel div-B">Panel B</div>
  <div class="panel div-C">Panel C</div>
</main>

【讨论】:

谢谢。这不是我要找的。​​span> 【参考方案7】:

您不能使用relative 定位使&lt;div&gt; 中的元素居中,因为这样,您正在设置您的UI 以将每个元素排列在前一个元素旁边。因此,我最终将使用absbolute 定位(如果您希望这些元素不滚动,请改用fixed)。

    将元素左对齐:

    #element 
        position: absolute;
        left: 0;
    
    

    将元素对齐到中心:

    #element 
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    
    

    右对齐元素:

    #element 
        position: absolute;
        right: 0;
    
    

为了使元素居中,我想出了一个奇怪但可行的解决方案:我将元素的 left 放在父元素的中心(通过设置 left: 50%)并水平平移元素的一半宽度(@ 987654330@)。请注意,这实际上是有效的,因为百分比在任何属性中都相对于父级,但trasform 是相对于元素本身的。

【讨论】:

【参考方案8】:

您听说过Bootstrap Framework。我在这里给你一个例子,说明我将如何使用这个框架为你的需求做一个响应式(跨浏览器)布局。我唯一不能严格匹配的要求是下一个:

三个 div 面板:1) (div-B) 一个最大宽度 = 500px 和最小宽度 = 400px 的 div 应始终位于所有浏览器的中心。 2) (div-A) 一个 div 应该显示和隐藏在 (div-B) 的左侧,其 min-width = 200px 和 max-width= 300px; 3) (div-C) 一个 div 应该显示和隐藏在 (div-B) 的右侧,其 min-width = 200px 和 max-width= 300px;

Bootstrap的柱状网格系统(它将屏幕宽度划分为12列)自动管理列的宽度以使网站响应各种类型的屏幕,所以我不知道是否可以匹配您的最大/最小像素宽度值,但您可以将总列的百分比分配给类似方法的三个元素。其余的都很好。您可以查看下一个示例。希望对您有所帮助。

$(document).ready(function()

    $("#btnToggleA").click(function()
    
        $(".div-A").slideToggle();
    );
    
    $("#btnToggleC").click(function()
    
        $(".div-C").slideToggle();
    );
);
.margin-20px

    margin: 0px 20px;
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>

<!-- Wrapper for the Boostrap layout -->
<div class="container-fluid">

<header class="row">
  <div class="col-12 p-0">
    <button id="btnToggleA" class="float-left btn btn-sm btn-primary">Toogle Div-A</button>
    <button id="btnToggleC" class="float-right btn btn-sm btn-primary">Toogle Div-C</button>
  </div>
</header>

<!-- Class "mt-3" just adds some margin-top for good looking but can be removed -->
<!-- Classes "bg-*" adds background colors, not needed but helps to visualize elements -->

<main class="row mt-3">

  <div class="col-3 text-center p-0">
    <div class="div-A bg-info">Panel A</div>
  </div>

  <div class="col-6 text-center p-0">
    <div class="div-B bg-warning margin-20px">
      Panel B
    </div>
  </div>

  <div class="col-3 text-center p-0">
    <div class="div-C bg-info">
      Panel C
    </div>
  </div>

</main>

</div>

【讨论】:

【参考方案9】:

这里有很多关于如何自己编写 CSS 的好答案,但是复杂的框架样式表维护起来很烦人。考虑使用框架。

Skeleton 将是您用例的首选。

<link rel="stylesheet" href="http://getskeleton.com/dist/css/normalize.css">
<link rel="stylesheet" href="http://getskeleton.com/dist/css/skeleton.css">
<!-- .u-pull-* will float content left/right -->
<button class="u-pull-left">Button A</button>
<button class="u-pull-right">Button C</button>
<!-- .container is a centered responsive wrapper -->
<div class="container">
  <div class="row">
    <div class="four columns">Panel A</div>
    <div class="four columns">Panel B</div>
    <div class="four columns">Panel C</div>
  </div>
</div>

【讨论】:

【参考方案10】:

使用 flex 很容易..

.parentDiv
    display: flex;

.childDiv
    margin: auto;

【讨论】:

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