由PHP加载的样式面包屑

Question

我正在使用PHP来确定是否应在页面上设置第二个痕迹。

这是我的PHP代码：

<?php 
        $c1 = 'News';
        $c1u = "crumb1.php";
        if(isset($value))
        {
             $c2 = $value;
         $c2u ="#";
        }
?>

然而，即使没有设置$ value，CSS样式的一部分似乎也会出现如下：

在第一次面包屑后如何摆脱矩形位？

这是我的CSS：

.breadcrumbs-one{
  box-shadow: 0 0 2px rgba(0,0,0,.2);
  overflow: hidden;
  width: 100%;
  margin-top:15px;
  margin-left:-20px;
}

.breadcrumbs-one li{
  float: left;
}

.breadcrumbs-one a{
  padding: .7em 1em .7em 2em;
  float: left;
  text-decoration: none;
  color: #000000;
  position: relative;
  //text-shadow: 0 1px 0 rgba(255,255,255,.5);
  background-color: #fff;
  background-image: linear-gradient(to right, #212121, #ddd);   
  background-image: -webkit-linear-gradient(left, #212121, #ddd);
}

.breadcrumbs-one li:first-child a{
  padding-left: 1em;
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one a:hover{
  background: #fff;
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one a::after,
.breadcrumbs-one a::before{
  content: "";
  position: absolute;
  top: 50%;
  margin-top: -1.5em;   
  border-top: 1.5em solid transparent;
  border-bottom: 1.5em solid transparent;
  border-left: 1em solid;
  right: -1em;
  border-radius: 5px 0 0 5px;

}

.breadcrumbs-one a::after{ 
  z-index: 2;
  border-left-color: #ddd;  
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one a::before{
  border-left-color: #ccc;  
  z-index: 1; 
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one a:hover::after{
  border-left-color: #fff;
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one .current,
.breadcrumbs-one .current:hover{
  font-weight: bold;
  background: none;
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one .current::after,
.breadcrumbs-one .current::before{
  content: normal;  
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one li:last-child a::before,
.breadcrumbs-one li:last-child a::after
{
  content: normal;
  border-radius: 5px 0 0 5px;
  border-radius: 5px 0 0 5px;
}

.breadcrumbs-one li:nth-child(3) a::after,
.breadcrumbs-one li:nth-child(3) a::before
{
 content: normal;  
 border-radius: 5px 0 0 5px;
}

.breadcrumbs-one li:last-child a::before,
.breadcrumbs-one li:last-child a::after
{
  content: normal;
  font-weight: bold;
}

ul.breadcrumbs-one li:first-child a::after,
ul.breadcrumbs-one li:first-child a::before
{
  content: "";
  position: absolute;
  top: 50%;
  margin-top: -1.5em;
  border-top: 1.5em solid transparent;
  border-bottom: 1.5em solid transparent;
  font-weight: bold;
}

更新

这是我在头文件中使用的PHP代码，用于显示面包屑：

<div class="container">
                <ul class="container-fluid bottomtab breadcrumbs-one">        
                <?php if(isset($c1)) { ?>
                <li><a href="<?php echo $c1u;?>"><span><?php echo $c1;?></span></a></li>
                <?php } if(isset($c2)) { ?>
                <li><a href="<?php echo $c2u;?>"><span><?php  echo $c2;?></span></a></li>   
                <?php } if(isset($c3)) { ?>
                <li><a href="<?php if(isset($c3)) {echo $c3u;}?>"><span ><?php if(isset($c3)) { echo $c3;} ?></span></a></li>           
                <?php } ?> 
            </ul>
             </div>