首页 > 解决方案 > 缩小浏览器时在部分内容上显示响应式页脚

问题描述

我对 CSS 和 HTML 还很陌生。

我知道这个问题已经被问过好几次了,但我似乎无法解决我当前的问题。

我一直在从事一些小型项目,例如尝试重新创建具有额外功能的其他网站。

我当前的任务是重新创建首页搜索区域,例如 google。

实施与发布

当浏览器调整大小时,我一直专注于网站的响应能力,所以我一直尽可能多地使用Flexbox 。

执行

具有容器 id 的主 div,最小高度为 100% 和相对位置。

容器 div 内部是 nav(#nav)、center(#center) 和 footer(#footer) 元素及其各自的 id。

我已经对页脚进行了一些研究,以及如何在缩小浏览器时保持响应的同时将其保持在页面底部,但我似乎已经停止了,或者我可能还没有完全理解如何获取页脚停在某个元素上。

问题

问题是我无法让页脚正常工作。我不希望它与主要内容中的按钮和链接重叠。调整浏览器大小时它会在搜索栏停止,但我希望它在遇到按钮时停止。

正如您将在 JSbin 链接中的代码片段块中看到的那样,我的页脚有问题。

当前 HTML + CSS 文件和输出JSBin

*{
    margin: 0px;
    padding: 0px;
}
html, body {
    height: 100%;  
}

#container {
    min-height:100%;
    position:relative;

}

a:visited{
    color: #609;
}

/* ----- Navigation Styling ----- */

#nav {
    display: flex;
    border: 10px solid  goldenrod;               /*Colourful Borders*/
    min-height:9vh;
    justify-content:flex-end;
    align-items: baseline;
    background:#ff0;
    padding:10px;
}

/*Nav Content*/

/* ----- Center Styling ----- */

#center {
    width: 100%;
    background-color: white;
    min-height:10vh;     
}

.ctr_img {
    height: 92px;
    width: 272x;
    padding-top: 20px;
    
}
.ctr_img:hover {
    -webkit-filter: invert(100%);
}

.img_mic {
    padding: 0 8px;
    float: right;
    display:inline-block;
    top: -30px;
    position: relative;
}

.srch_bx {
    border-style: hidden;
    box-shadow: 0 2px 2px 0 rgba(0,0,0,0.16), 0 0 0 1px rgba(0,0,0,0.08);
    max-width: 40%;
    min-height: 40px;
}

.srch_in {
    width: 100%;
    border-radius: 2px;
    border: none;
    overflow: auto;
    outline: none;
    left: 0px;
    background: url(data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw%3D%3D) transparent;
    font: 16px arial,sans-serif;
    display: inline-block;
    text-align: start;
}

.mic_set {
    background-size: 30px 30px;
    height: 100%;
    width: 26px;
}

.btn_sbmt {
    padding: 20px 50%;
    min-height: 20px;
    display: flex;
    justify-content: center;
}

.btn_srch, .btn_lcky {
    background-color: #f2f2f2;
    border: 1px solid #f2f2f2;
    border-radius: 2px;
    color: #757575;
    font-family: arial,sans-serif;
    font-size: 1vw;
    font-weight: bold;
    margin: 11px 4px;
    padding: 0 16px;
    height: 36px;
}
    
.lang_diff{
    max-height: 28px;
    font-size: 0.9vw;
    margin-bottom: 24px;
    font-family: arial,sans-serif;
}

/* Footer Styling */

#footer {
    position:absolute;
    bottom:0;
    height: 5.2em; /* Height of the footer */
    width: 100%;
    min-height: 10vh;
    background-color: #f2f2f2;
    line-height: 40px; /*Specifies the line height.*/
    min-width: 400px;


}

.ctry {
    display: flex;
    margin-left: 30px;
    text-align: left;
    color: rgba(0,0,0,.54);
    border-top: 1px solid #e4e4e4;
    max-width: 150px;
}

.ctry_ftr {
    font-size: 1vw;
}

.opt_ftr {
    display: flex;
    justify-content:space-between;
    border:  1px solid #e4e4e4;
}

span.blft_ftr a, span.brght_ftr a, span.brght_stg a {
    text-decoration: none;
    color: #666;
    margin-left: 16px;
    font-size: 1vw;
}

.brght_ftr{
    margin-right: 30px;
    float: right;
}

.adv_ftr {
    padding: 0 16px;
    text-decoration: none;
    display: inline-block;
}
<!DOCTYPE html>
<html>
    <head>
        <title>Testing Ground</title>
        <link rel="stylesheet" type="text/css" href="style.css" />
        <link rel="stylesheet" type="text/css" href="reset.css" />
        <link rel="icon" href="http://www.favicon.cc/logo3d/53653.png" />
        <meta charset="UTF-8">
    </head>
    <body>  <!--FLEX-->
        <div id="container"> <!-- Added New for Footer behaviour -->
            <nav id="nav" class="nav_cls">
                <!--Currently at work-->
                <p>Navigation Bar Content</p> 
            </nav>
            <center id="center">
                <a class="img_link" href="">
                    <img class="ctr_img" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/PM5544_with_non-PAL_signals.png/250px-PM5544_with_non-PAL_signals.png" alt="image">
                </a>
                <div class="in_forms">
                    <div class="srch_bx">
                        <form>
                            <input class="srch_in" type="text" name="search"/>
                        </form>
                        <div class="img_mic">
                            <a href="https://youtu.be/Ye8mB6VsUHw ">
                                <img class="mic_set" src="https://cdn.sesamestreet.org/sites/default/files/1496328210/Cookie_Big.png" />
                            </a>
                        </div>
                    </div>
                </div>
                <div>
                    <div class="btn_sbmt">
                        <input class="btn_srch" type="submit" value="Don't Hide me!" name="search"/>
                        <input class="btn_lcky" type="submit" value="Seriously, Don't!" name="luck"/>
                    </div>
                </div>
                <div class="lang_diff">
                    Links:
                    <a class="lang" href="">Link1</a>
                    <a class="lang" href="">Link2</a>
                    <a class="lang" href="">Link3</a>
                    <a class="lang" href="">Link4</a>
                    <a class="lang" href="">Link5</a>
                </div>
            </center>
            <footer id="footer">
                <div class="ctry">
                    <span class="ctry_ftr">
                        First half of a footer 
                    </span>
                </div>
                <div class="opt_ftr">
                    <span class="blft_ftr">
                        <a class="adv_ftr" href="">Footer Link 1</a>
                        <a class="adv_ftr" href="">Footer Link 2</a>
                        <a class="adv_ftr" href="">Footer Link 3</a>
                    </span>
                    <span class="brght_ftr">
                        <a class="adv_ftr" href="">Footer Link 4</a>
                        <a class="adv_ftr" href="">Footer Link 5</a>
                    </span>
                </div>
            </footer>
        </div>
    </body>
</html>

访问过的网站

标签: htmlcsscss-positionfooterresponsive

解决方案


:)

首先恭喜你遵守了关于 SO 的提问规则。

您的问题来自于将页脚置于文档流之外 ( position:absolute)。看起来您希望将其放置在文档流中。所以position:absolute变成position:relative(或static)。

要将其始终保持在屏幕底部,请将其调整#containerdisplay:flex;flex-direction:column;min-height:100vh并使其#center增长:

#footer {
  position:static; /* this is default value of position
                    * so you could just remove `position:absolute`
                    * from your code.
                    */
}
#container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
#center {
  flex-grow: 1;
}

看到它工作:

* {
  margin: 0px;
  padding: 0px;
}

html,
body {
  height: 100%;
}

#container {
  min-height: 100%;
  position: relative;
}

a:visited {
  color: #609;
}


/* ----- Navigation Styling ----- */

#nav {
  display: flex;
  border: 10px solid goldenrod;
  /*Colourful Borders*/
  min-height: 9vh;
  justify-content: flex-end;
  align-items: baseline;
  background: #ff0;
  padding: 10px;
}


/*Nav Content*/


/* ----- Center Styling ----- */

#center {
  width: 100%;
  background-color: white;
  min-height: 10vh;
}

.ctr_img {
  height: 92px;
  width: 272x;
  padding-top: 20px;
}

.ctr_img:hover {
  -webkit-filter: invert(100%);
}

.img_mic {
  padding: 0 8px;
  float: right;
  display: inline-block;
  top: -30px;
  position: relative;
}

.srch_bx {
  border-style: hidden;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(0, 0, 0, 0.08);
  max-width: 40%;
  min-height: 40px;
}

.srch_in {
  width: 100%;
  border-radius: 2px;
  border: none;
  overflow: auto;
  outline: none;
  left: 0px;
  background: url(data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw%3D%3D) transparent;
  font: 16px arial, sans-serif;
  display: inline-block;
  text-align: start;
}

.mic_set {
  background-size: 30px 30px;
  height: 100%;
  width: 26px;
}

.btn_sbmt {
  padding: 20px 50%;
  min-height: 20px;
  display: flex;
  justify-content: center;
}

.btn_srch,
.btn_lcky {
  background-color: #f2f2f2;
  border: 1px solid #f2f2f2;
  border-radius: 2px;
  color: #757575;
  font-family: arial, sans-serif;
  font-size: 1vw;
  font-weight: bold;
  margin: 11px 4px;
  padding: 0 16px;
  height: 36px;
}

.lang_diff {
  max-height: 28px;
  font-size: 0.9vw;
  margin-bottom: 24px;
  font-family: arial, sans-serif;
}


/* Footer Styling */

#footer {
  /* position: absolute; 
     bottom: 0; */
  height: 5.2em;
  /* Height of the footer */
  width: 100%;
  min-height: 10vh;
  background-color: #f2f2f2;
  line-height: 40px;
  /*Specifies the line height.*/
  min-width: 400px;
}

.ctry {
  display: flex;
  margin-left: 30px;
  text-align: left;
  color: rgba(0, 0, 0, .54);
  border-top: 1px solid #e4e4e4;
  max-width: 150px;
}

.ctry_ftr {
  font-size: 1vw;
}

.opt_ftr {
  display: flex;
  justify-content: space-between;
  border: 1px solid #e4e4e4;
}

span.blft_ftr a,
span.brght_ftr a,
span.brght_stg a {
  text-decoration: none;
  color: #666;
  margin-left: 16px;
  font-size: 1vw;
}

.brght_ftr {
  margin-right: 30px;
  float: right;
}

.adv_ftr {
  padding: 0 16px;
  text-decoration: none;
  display: inline-block;
}

#footer {
  line-height: 2.42em;
}
#container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#center {
  flex-grow: 1;
}
<div id="container">
  <!-- Added New for Footer behaviour -->
  <nav id="nav" class="nav_cls">
    <!--Currently at work-->
    <p>Navigation Bar Content</p>
  </nav>
  <center id="center">
    <a class="img_link" href="">
      <img class="ctr_img" src="https://upload.wikimedia.org/wikipedia/commons/thumb/c/c4/PM5544_with_non-PAL_signals.png/250px-PM5544_with_non-PAL_signals.png" alt="image">
    </a>
    <div class="in_forms">
      <div class="srch_bx">
        <form>
          <input class="srch_in" type="text" name="search" />
        </form>
        <div class="img_mic">
          <a href="https://youtu.be/Ye8mB6VsUHw ">
            <img class="mic_set" src="https://cdn.sesamestreet.org/sites/default/files/1496328210/Cookie_Big.png" />
          </a>
        </div>
      </div>
    </div>
    <div>
      <div class="btn_sbmt">
        <input class="btn_srch" type="submit" value="Don't Hide me!" name="search" />
        <input class="btn_lcky" type="submit" value="Seriously, Don't!" name="luck" />
      </div>
    </div>
    <div class="lang_diff">
      Links:
      <a class="lang" href="">Link1</a>
      <a class="lang" href="">Link2</a>
      <a class="lang" href="">Link3</a>
      <a class="lang" href="">Link4</a>
      <a class="lang" href="">Link5</a>
    </div>
  </center>
  <footer id="footer">
    <div class="ctry">
      <span class="ctry_ftr">
                        First half of a footer 
                    </span>
    </div>
    <div class="opt_ftr">
      <span class="blft_ftr">
                        <a class="adv_ftr" href="">Footer Link 1</a>
                        <a class="adv_ftr" href="">Footer Link 2</a>
                        <a class="adv_ftr" href="">Footer Link 3</a>
                    </span>
      <span class="brght_ftr">
                        <a class="adv_ftr" href="">Footer Link 4</a>
                        <a class="adv_ftr" href="">Footer Link 5</a>
                    </span>
    </div>
  </footer>
</div>

另一个需要解决的小问题是使用line-height表示的pxfor#footer而其高度表示为em,导致页面产生垂直滚动条。line-height:2.42em修复它。


另一方面,我给你这个答案而不提到你的例子在窄设备上降低字体大小的主要可访问性问题是不公平的。尝试在任何手机上打开示例页面,您就会明白我的意思。在任何时候,页面中的元素都应该保持允许用户阅读的字体大小。

网页的主要目的是呈现内容。如果您以禁用用户接收消息的能力的形式呈现内容,则您的页面不会执行其功能。


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