在CSS中的横幅中实现箭头形状 [英] Achieving arrow-like shapes in a banner in CSS

问题描述

我想使用纯CSS，没有图片来实现以下形状。

我来到以下几点。

strong> HTML 结构：

 < div class =sixteen columns> 
< div id =applicationStatus> 
< ul> 
< li class =applicationStatus>申请已收到< / li> 
< li class =applicationStatusGood>语言考试< / li> 
< li class =applicationStatusNoGood>口试考试< / li> 
< li class =applicationStatus> Grant< / li> 
< / ul> 
< / div> 
< / div> 
  

这里是 CSS ：

  #applicationStatus {
 position：relative; 
 width：auto; 
 height：140px; $ b $ d left：40px; } 
 
 ul.applicationStatus {
 list-style：none; } 
 
 li.applicationStatus，li.applicationStatusGood，li.applicationStatusNoGood {
 height：140px; 
 background-color：＃767676; 
 display：inline-block; 
 / * Dirty IE Hack * / 
 zoom：1; 
 * display：inline; 
 margin-right：30px; 
 margin-left：30px; 
 padding：10px; 
 color：white; 
 font-size：18px; 
 text-align：center; 
 line-height：150px; 
 / * vertical-align：middle; * /} 
 li.applicationStatus：after，li.applicationStatusGood：after，li.applicationStatusNoGood：after {
 content：; 
 position：absolute; 
 width：0; 
 height：0; 
 border-top：80px solid transparent; 
 border-left：30px solid＃767676; 
 border-bottom：80px solid transparent; 
 margin：-10px 90px 0 10px; } 
 li.applicationStatus：before，li.applicationStatusGood：before，li.applicationStatusNoGood：before {
 content：; 
 position：absolute; 
 width：0; 
 height：0; 
 left：0px; 
 border-top：80px solid transparent; 
 border-left：30px solid white; 
 border-bottom：80px solid transparent; 
 margin：-10px 0px 0 0px; } 
 li.applicationStatus：first-child，li.applicationStatusGood：first-child，li.applicationStatusNoGood：first-child {
 margin-left：0px; 
 text-indent：30px; } 
 li.applicationStatus：last-child，li.applicationStatusGood：last-child，li.applicationStatusNoGood：last-child {
 border-top：0px solid transparent; 
 border-left：0px solid transparent; 
 border-bottom：0px solid transparent; } 
 
 li.applicationStatusGood {
 background-color：＃77a942; } 
 li.applicationStatusGood：after {
 border-left：30px solid＃77a942; } 
 
 li.applicationStatusNoGood {
 background-color：＃c42c00; } 
 li.applicationStatusNoGood：after {
 border-left：30px solid＃c42c00; } 
  

为什么：before

解决方案

修改代码

h2>

您遇到的主要问题是您的 li position：relative $ c>元素。但还有其他事情需要调整。

这里是一个

我在上面的HTML中添加了您未能引用的类别到 ul 元素，所以这里是HTML：

 < div class =十六列> 
< div id =applicationStatus> 
< ul class =applicationStatus> 
< li class =applicationStatus>申请已收到< / li> 
< li class =applicationStatusGood>语言考试< / li> 
< li class =applicationStatusNoGood>口试考试< / li> 
< li class =applicationStatus> Grant< / li> 
< / ul> 
< / div> 
< / div> 
  

然后，我修改你的CSS有点浓缩（如果CSS3只支持）：

  #applicationStatus {
 position：relative; 
 width：auto; 
 height：140px; $ b $ d left：40px; } 
 
 .applicationStatus li {/ *添加了这个，并将很多代码移动到这里* / 
 position：relative; / *这是你的代码丢失的关键属性* / 
 text-indent：30px; 
 height：140px; 
 background-color：＃767676; 
 display：inline-block; 
 / * Dirty IE Hack * / 
 zoom：1; 
 * display：inline; 
 / * margin-right：30px;消除这个* / 
 margin-left：30px; 
 padding：10px 10px 10px 30px; / * tweaking this * / 
 color：white; 
 font-size：18px; 
 text-align：center; 
 line-height：150px; 
} 
 
 ul.applicationStatus {/ *这与您提供的HTML无关，但我将类添加到ul * / 
 list-style：none; } 
 
 / *调整下面的各种事情* / 
 
 li.applicationStatus：first-child：after，li.applicationStatusGood：after，li.applicationStatusNoGood：after {
 content：; 
 position：absolute; 
 width：0; 
 height：0; 
 border-top：80px solid transparent; 
 border-left：30px solid＃767676; 
 border-bottom：80px solid transparent; 
 margin：-10px 90px 0 10px; 
} 
 li.applicationStatus：last {
} 
 li.applicationStatus：last-child：before，li.applicationStatusGood：before，li.applicationStatusNoGood：before {
 content： 
 position：absolute; 
 width：0; 
 height：0; 
 left：0; 
 border-top：80px solid transparent; 
 border-left：30px solid white; 
 border-bottom：80px solid transparent; 
 margin：-10px 0px 0 0px; 
} 
 
 li.applicationStatus：first-child {
 padding-left：10px; 
 margin-left：0; 
} 
 li.applicationStatus：last-child {
 padding-right：30px; 
} 
 
 li.applicationStatusGood {
 background-color：＃77a942; } 
 li.applicationStatusGood：after {
 border-left：30px solid＃77a942; } 
 
 li.applicationStatusNoGood {
 background-color：＃c42c00; } 
 li.applicationStatusNoGood：before {
 border-left：30px solid＃c42c00; } 
  

I want to achieve the following shapes using pure CSS, no images.

I've come to the following point.

Here is the HTML structure:

<div class="sixteen columns">
    <div id="applicationStatus">
        <ul>
            <li class="applicationStatus">Application Received</li>
            <li class="applicationStatusGood">Language Exam</li>
            <li class="applicationStatusNoGood">Oral Exam</li>
            <li class="applicationStatus">Grant</li>
        </ul>
    </div>
</div>

And here is the CSS:

#applicationStatus {
  position: relative;
  width: auto;
  height: 140px;
  left: 40px; }

ul.applicationStatus {
  list-style: none; }

li.applicationStatus, li.applicationStatusGood, li.applicationStatusNoGood {
  height: 140px;
  background-color: #767676;
  display: inline-block;
  /* Dirty IE Hack */
  zoom: 1;
  *display: inline;
  margin-right: 30px;
  margin-left: 30px;
  padding: 10px;
  color: white;
  font-size: 18px;
  text-align: center;
  line-height: 150px;
  /*        vertical-align: middle; */ }
  li.applicationStatus:after, li.applicationStatusGood:after, li.applicationStatusNoGood:after {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border-top: 80px solid transparent;
    border-left: 30px solid #767676;
    border-bottom: 80px solid transparent;
    margin: -10px 90px 0 10px; }
  li.applicationStatus:before, li.applicationStatusGood:before, li.applicationStatusNoGood:before {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    left: 0px;
    border-top: 80px solid transparent;
    border-left: 30px solid white;
    border-bottom: 80px solid transparent;
    margin: -10px 0px 0 0px; }
  li.applicationStatus:first-child, li.applicationStatusGood:first-child, li.applicationStatusNoGood:first-child {
    margin-left: 0px;
    text-indent: 30px; }
  li.applicationStatus:last-child, li.applicationStatusGood:last-child, li.applicationStatusNoGood:last-child {
    border-top: 0px solid transparent;
    border-left: 0px solid transparent;
    border-bottom: 0px solid transparent; }

li.applicationStatusGood {
  background-color: #77a942; }
  li.applicationStatusGood:after {
    border-left: 30px solid #77a942; }

li.applicationStatusNoGood {
  background-color: #c42c00; }
  li.applicationStatusNoGood:after {
    border-left: 30px solid #c42c00; }

Why doesn't the :before selector apply to all of the shapes or all in all how can I achieve what I want?

解决方案

Modification of Your Code

The main issue you faced was not having position: relative on your li elements. But there were other things that needed tweaking too.

Here is a fiddle example to see.

I added the class you failed to reference in your HTML above to the ul element, so here is the HTML:

<div class="sixteen columns">
    <div id="applicationStatus">
        <ul class="applicationStatus">
            <li class="applicationStatus">Application Received</li>
            <li class="applicationStatusGood">Language Exam</li>
            <li class="applicationStatusNoGood">Oral Exam</li>
            <li class="applicationStatus">Grant</li>
        </ul>
    </div>
</div>

Then I modified your CSS a bit to condense it (could be more condensed if CSS3 only was being supported):

#applicationStatus {
  position: relative;
  width: auto;
  height: 140px;
  left: 40px; }

.applicationStatus li { /* Added this and moved much code to here */
  position: relative; /* this was a key property missing from your code */
  text-indent: 30px;
  height: 140px;
  background-color: #767676;
  display: inline-block;
  /* Dirty IE Hack */
  zoom: 1;
  *display: inline;
  /* margin-right: 30px; Eliminated this */
  margin-left: 30px;
  padding: 10px 10px 10px 30px; /* tweaked this */
  color: white;
  font-size: 18px;
  text-align: center;
  line-height: 150px;
}

ul.applicationStatus { /* this was irrelevant with the HTML you gave, but I added the class to the ul */
  list-style: none; }

/* tweaked various things below here */

li.applicationStatus:first-child:after, li.applicationStatusGood:after, li.applicationStatusNoGood:after {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border-top: 80px solid transparent;
    border-left: 30px solid #767676;
    border-bottom: 80px solid transparent;
    margin: -10px 90px 0 10px; 
}
li.applicationStatus:last-child:before, li.applicationStatusGood:before, li.applicationStatusNoGood:before {
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    left: 0;
    border-top: 80px solid transparent;
    border-left: 30px solid white;
    border-bottom: 80px solid transparent;
    margin: -10px 0px 0 0px; 
}

li.applicationStatus:first-child {
    padding-left: 10px;
    margin-left: 0;
}
li.applicationStatus:last-child {
    padding-right: 30px;
}

li.applicationStatusGood {
  background-color: #77a942; }
  li.applicationStatusGood:after {
    border-left: 30px solid #77a942; }

li.applicationStatusNoGood {
  background-color: #c42c00; }
  li.applicationStatusNoGood:after {
    border-left: 30px solid #c42c00; }

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