如何使用：在属性之前在跨度

Question

我想在跨度前面创建一个正方形。这样的事情image。

但我没有成功使用span:before属性创建它。有可能用这个来创造吗？如果是，那么有人可以告诉我我该怎么做？

我用简单的CSS创建了这个。这是我的代码

HTML：

<div id="five_day_table">
    <h3>Annual Cleaning Schedule</h3>
    <div class="r-cl"><span></span>Forecasted Rain Clean</div>
    <div class="m-cl"><span></span>Forecasted Manual Clean</div>
    <div class="cm-cl"><span></span>Completed Manual Clean</div>
    <div class="d-cl"><span></span>Forecasted Dirty Rain</div>
</div>

和 CSS

#five_day_table span {
  width: 14px;
  height: 14px;
  display: block;
  float: left;
  margin: 1px 3px 0px 0px;
}
.r-cl span
{
 background:  Blue; 
}
.m-cl span
{
 background:  red; 
}
.cm-cl span
{
 background:  green; 
}
.d-cl span
{
 background:  brown; 
}

这是工作链接。但我只想使用这个HTML。

<div id="five_day_table">
    <h3>Annual Cleaning Schedule</h3>
    <span class='one'>Forecasted Rain Clean</span>
    <span class='two'>Forecasted Manual Clean</span>
    <span class='three'>Completed Manual Clean</span>
    <span class='four'>Forecasted Dirty Rain</span>
</div>

怎么可能？

Answer 1

您需要为content: ""添加span:before才能工作

#five_day_table span {
  display: block;
  margin: 1px 3px 0px 0px;
}
span:before {
  content: "";
  display: inline-block;
  width: 15px;
  height: 15px;
  margin-right: 5px;
}
.one:before {
  background: Blue;
}
.two:before {
  background: red;
}
.three:before {
  background: green;
}
.four:before {
  background: brown;
}

<div id="five_day_table">
  <h3>Annual Cleaning Schedule</h3>
  <span class='one'>Forecasted Rain Clean</span>
  <span class='two'>Forecasted Manual Clean</span>
  <span class='three'>Completed Manual Clean</span>
  <span class='four'>Forecasted Dirty Rain</span>

</div>

Answer 2

您可以通过添加＆＃34;内容：＆＃39;■＆＃39 ;; ＆＃34;

＆＃13;

＆＃13;

#five_day_table span {
  width: 14px;
  height: 14px;
  margin: 1px 0 0px 0px;
}

#five_day_table span:before {
  content: '■'; 
  margin-right: 2px;
  font-size: 25px;
  vertical-align: middle;
  display: inline-block;
  margin-top: -5px;
}

#five_day_table span:after {
  content: '';
  display: block;
  clear:both;
}

span.one:before
{
 color:  Blue; 
}
span.two:before
{
 color:  red; 
}
span.three:before
{
 color:  green; 
}
span.four:before
{
 color:  brown; 
}

＆＃13;

<div id="five_day_table">
    <h3>Annual Cleaning Schedule</h3>
    <span class='one'>Forecasted Rain Clean</span>
    <span class='two'>Forecasted Manual Clean</span>
    <span class='three'>Completed Manual Clean</span>
    <span class='four'>Forecasted Dirty Rain</span>
</div>

＆＃13;

＆＃13;

＆＃13;

Answer 3

＆＃13;

＆＃13;

span{
    display:block;
}

#five_day_table span:before {
  width: 14px;
  height: 14px;
  display: inline-block;
  margin: 1px 3px 0px 0px;
    content:"";
}
.one:before
{
 background:  Blue; 
}
.two:before
{
 background:  red; 
}
.three:before
{
 background:  green; 
}
.four:before
{
 background:  brown; 
}

＆＃13;

<div id="five_day_table">
    <h3>Annual Cleaning Schedule</h3>
    <span class='one'>Forecasted Rain Clean</span>
    <span class='two'>Forecasted Manual Clean</span>
    <span class='three'>Completed Manual Clean</span>
    <span class='four'>Forecasted Dirty Rain</span>
</div>

＆＃13;

＆＃13;

＆＃13;

  

只需在旧CSS中添加:before，然后将block更改为   inline-block以便它符合一行并且block为{。}}   整个span和休息将css选择器更改为:before，这样就可以了   采取各自的颜色。

Answer 4

试试这个。

CodePen Sample

您需要做的是从span中删除宽度，然后更改类。请注意，:before需要content: ''属性才能显示。

这是HTML代码：

<div id="five_day_table">
    <h3>Annual Cleaning Schedule</h3>
    <span class='one'>Forecasted Rain Clean</span>
    <span class='two'>Forecasted Manual Clean</span>
    <span class='three'>Completed Manual Clean</span>
    <span class='four'>Forecasted Dirty Rain</span>
</div>

和css：

#five_day_table span {
    height: 14px;
    display: block;
    margin: 1px 3px 3px 0px;
}
#five_day_table span:before{
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 5px;
}
.one:before{
     background:  Blue; 
}
.two:before{
     background:  red; 
}
.three:before{
     background:  green; 
}
.four:before{
     background:  brown; 
}

Answer 5

http://jsfiddle.net/4p3632pg/

这应该是您正在寻找的

#five_day_table > span {
    display:block;
}
#five_day_table > span::before {
    content:'';
  width: 14px;
  height: 14px;
  display: block;
  float: left;
  margin: 1px 3px 0px 0px;
}
.one::before
{
 background:  Blue; 
}
.two::before
{
 background:  red; 
}
.three::before
{
 background:  green; 
}
.four::before
{
 background:  brown; 
}