Question

我有一个水平表单，它使用Bootstrap3的标准类进行样式设置。但是，我还有三个要求：

标签应在包裹后立即用“......”截断
如果需要输入字段，则应在Label的最后一个字母后面显示星号（*）。 不应受截断影响。
不得触及HTML标记。（T ___ T）

使用仅限CSS的解决方案是否可以实现这一目标？非常感谢你们，伙计们！

.control-label {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.form-group[required] > label:after {
  content: " * ";
  color: red;
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

<form class="form-horizontal" style="max-width: 700px;">
  <div class="form-group">
    <label class="col-sm-2 control-label" for="inputEmail3">Email:</label>
    <div class="col-sm-10 controls">
      <input type="email" id="inputEmail3" placeholder="Email"/>
    </div>
  </div>
  <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired">Required:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired" placeholder="Required"/>
    </div>
  </div>
    <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired2">Required with long Label:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired2" placeholder="Required with long Label"/>
    </div>
  </div>
</form>

Answer 1

您也可以制作自己的自定义“truncate”类，并在需要时添加绝对“*”asteriks，如下所示：

https://jsfiddle.net/rrjruf82/

HTML：

<form>
  <div type='text' class='label truncate'> Add text here more more more     </div>
</form>

CSS：

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    -o-text-overflow: ellipsis;
    -ms-text-overflow: ellipsis;
}

.label {
  max-width: 120px;
  padding: 5px;
  position: relative;
}

.label:after {
  position: absolute;
  right: -3px;
  top: 4px;
  content: '*';
  color: red;
  width: 10px;
  display: inline-block;
}

Answer 2

您的星号应符合以下规则。像这样：

.form-group[required] > label:after {
   content: " * ";
   color: red;
   overflow: visible;
   white-space: normal;
   text-overflow: clip;
}

我建议你把绝对定位放在它上面。

Answer 3

更新

很抱歉由于某种原因，从未想到需要一个详细的标签（不是＆＃39;＃34;详细标签＆＃34;矛盾？）。我已经修改了我的答案以更好地满足您的需求。它涉及一个小JS，但比我预期的更好。基本思路是：

在<span>

<i>

<b>

<label>

现在，当在<label> via :after伪类中插入macho asteriX时，它将被放置在内联元素之后。
所以这个元素用作＆＃34;缓冲区＆＃34;保护男子气概不被覆盖。

SNIPPET 2

＆＃13;

var fgrp = document.querySelectorAll('.form-group')[2];

var clbl = document.querySelectorAll('.control-label')[2];

var atX = document.createElement('span');

fgrp.classList.add('ellipse');

clbl.appendChild(atX);

＆＃13;

.control-label {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.form-group[required] > label:after {
  content: " ✱ ";
  color: red;
}

.ellipse *:last-of-type {
  display: block;
  position: relative;
  outline: 0;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  vertical-align: middle;
  width: 100%;
}

＆＃13;

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

<form class="form-horizontal" style="max-width: 700px;">
  <div class="form-group">
    <label class="col-sm-2 control-label" for="inputEmail3">Email:</label>
    <div class="col-sm-10 controls">
      <input type="email" id="inputEmail3" placeholder="Email"/>
    </div>
  </div>
  <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired">Required:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired" placeholder="Required"/>
    </div>
  </div>
    <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired2">Required with long Label~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired2" placeholder="Required with long Label"/>
    </div>
  </div>
</form>

＆＃13;

<小时/>

OLD

我使用的技术是简单的CSS。我使用JS只生成一些段落来演示椭圆。当我处理受限制的HTML / JS使用时，这就是我滚动的方式。：P

顺便说一下，我用那个小型的星号进行了交易，购买了一台男子气概的V8 1000马力asteriX。

SNIPPET 1

＆＃13;

var text = ['Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt.',

  'Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur?',

  'At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio.',

  'Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae.',

  'Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat. Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima',

  'Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla pariatur?'
];



var s = document.createElement('section');

s.classList.add('ellipse');

document.body.appendChild(s);

for (var i = 0; i < text.length; i++) {

  var p = document.createElement('p');

  p.innerHTML = text[i];

  s.appendChild(p);
}

＆＃13;

/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
html {
  box-sizing: border-box;
  font: 500 16px/1.428'Raleway';
  height: 100vh;
  width: 100vw;
}
*,
*:before,
*:after {
  box-sizing: inherit;
  margin: 0;
  padding: 0;
}
body {
  position: relative;
  font-size: 1rem;
  line-height: 1;
  height: 100%;
  width: 100%;
  overflow-x: hidden;
  overflow-y: scroll;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
form {
  margin: 50px 20px;
}
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/

.control-label {
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.form-group[required] > label:after {
  content: " ✱ ";
  color: red;
}
/* Demo #3~~~~~~~~~~~~~~~*/

.ellipse *:last-of-type {
  display: block;
  position: relative;
  outline: 0;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  vertical-align: middle;
  width: 100%;
}
p {
  white-space: pre-wrap;
  width: 80%;
  max-width: 400px;
  position: relative;
}
section {
  padding: 20px;
}
/*~~~~~~~~~~~~~~~~~~~~~~~~~~*/

＆＃13;

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" integrity="sha384-1q8mTJOASx8j1Au+a5WDVnPi2lkFfwwEAa8hDDdjZlpLegxhjVME1fgjWPGmkzs7" crossorigin="anonymous">

<form class="form-horizontal" style="max-width: 700px;">
  <div class="form-group">
    <label class="col-sm-2 control-label" for="inputEmail3">Email:</label>
    <div class="col-sm-10 controls">
      <input type="email" id="inputEmail3" placeholder="Email" />
    </div>
  </div>
  <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired">Required:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired" placeholder="Required" />
    </div>
  </div>
  <div class="form-group" required>
    <label class="col-sm-2 control-label" for="inputRequired2">Required with long Label:</label>
    <div class="col-sm-10 controls">
      <input type="text" id="inputRequired2" placeholder="Required with long Label" />
    </div>
  </div>
</form>

＆＃13;

CSS：使用省略号截断标签，但始终显示“必需指标”

3 个答案:

更新

SNIPPET 2

OLD

SNIPPET 1