Javascript jQuery$this+；同级元素调用不工作

我不确定是我的jQuery选择器出了问题，还是我的jQuery代码出了问题

我试图在

上添加一个单击事件，当单击该事件时，它会将类添加到折叠子文本下方的右侧

，使其从屏幕外部显示并在页面上可见

我想知道如果我的html设置都错了，是否应该将
放在
下面的折叠子文本中？我在哪里可以找到一些很好的例子？我的jQuery选择器都错了吗

谢谢大家!

这是到目前为止我的jQuery代码：

$(".fly-in").each(function(){
    $(this).on("click", function() {
    //    $(this).find(".below-fold-child-text").toggleClass(".left-show");
       $(".right .below-fold-child-text",this).toggleClass(".left-show");
    });
}); 

&-text {
        background: $orange;
        color: $white;
        position: absolute;
        width: 40%; 
        top: 0px;
        z-index: 4;
        height: 100%;
        padding: 30px;

        &.left {
            // transform: translateX(0);
               transform: translateX(-999999px);
              &-show {
                 transform: translateX(0px);
                }
             }

                &.right {
                    // transform: translateX(623px);
                    transform: translateX(99999px);
                    &-show {
                        transform: translateX(623px);
                    }
                }

                h3 {
                    text-transform: uppercase;
                    font-size: 130%;

                }
                p {
                    font-size: 110%;
                }

                h3,p {
                    margin: 0;
                }


            } 

<div class="below-fold-child">
  <img src="https://placehold.it/800x200">
  <div class="right below-fold-child-text">
             <h3>Title</h3>
             <p>Lorem Ipsum dolor content goes here</p>
         </div>
         <i class="right fly-in fa fa-times-circle" aria-hidden="true"></i>
     </div>

     <div class="below-fold-child">
         <img src="https://placehold.it/800x200">
         <div class="left below-fold-child-text">
             <h3>A short history of florida</h3>
             <p>The first people reached Florida before 10,000 BC. They were hunters and gatherers. At the time the world was in grip of an ice age and huge animals like mastodons roamed what is now Florida. After the end of the ice age shellfish were abundant and by 2,000 BC the people of Florida were making pottery. Ater 1,500 BC they also built burial mounds.</p>
         </div>
         <i class="left fly-in fa fa-times-circle" aria-hidden="true"></i>
    </div> 

我的Sass代码：

$(".fly-in").each(function(){
    $(this).on("click", function() {
    //    $(this).find(".below-fold-child-text").toggleClass(".left-show");
       $(".right .below-fold-child-text",this).toggleClass(".left-show");
    });
}); 

&-text {
        background: $orange;
        color: $white;
        position: absolute;
        width: 40%; 
        top: 0px;
        z-index: 4;
        height: 100%;
        padding: 30px;

        &.left {
            // transform: translateX(0);
               transform: translateX(-999999px);
              &-show {
                 transform: translateX(0px);
                }
             }

                &.right {
                    // transform: translateX(623px);
                    transform: translateX(99999px);
                    &-show {
                        transform: translateX(623px);
                    }
                }

                h3 {
                    text-transform: uppercase;
                    font-size: 130%;

                }
                p {
                    font-size: 110%;
                }

                h3,p {
                    margin: 0;
                }


            } 

<div class="below-fold-child">
  <img src="https://placehold.it/800x200">
  <div class="right below-fold-child-text">
             <h3>Title</h3>
             <p>Lorem Ipsum dolor content goes here</p>
         </div>
         <i class="right fly-in fa fa-times-circle" aria-hidden="true"></i>
     </div>

     <div class="below-fold-child">
         <img src="https://placehold.it/800x200">
         <div class="left below-fold-child-text">
             <h3>A short history of florida</h3>
             <p>The first people reached Florida before 10,000 BC. They were hunters and gatherers. At the time the world was in grip of an ice age and huge animals like mastodons roamed what is now Florida. After the end of the ice age shellfish were abundant and by 2,000 BC the people of Florida were making pottery. Ater 1,500 BC they also built burial mounds.</p>
         </div>
         <i class="left fly-in fa fa-times-circle" aria-hidden="true"></i>
    </div> 

我的html代码：

$(".fly-in").each(function(){
    $(this).on("click", function() {
    //    $(this).find(".below-fold-child-text").toggleClass(".left-show");
       $(".right .below-fold-child-text",this).toggleClass(".left-show");
    });
}); 

&-text {
        background: $orange;
        color: $white;
        position: absolute;
        width: 40%; 
        top: 0px;
        z-index: 4;
        height: 100%;
        padding: 30px;

        &.left {
            // transform: translateX(0);
               transform: translateX(-999999px);
              &-show {
                 transform: translateX(0px);
                }
             }

                &.right {
                    // transform: translateX(623px);
                    transform: translateX(99999px);
                    &-show {
                        transform: translateX(623px);
                    }
                }

                h3 {
                    text-transform: uppercase;
                    font-size: 130%;

                }
                p {
                    font-size: 110%;
                }

                h3,p {
                    margin: 0;
                }


            } 

<div class="below-fold-child">
  <img src="https://placehold.it/800x200">
  <div class="right below-fold-child-text">
             <h3>Title</h3>
             <p>Lorem Ipsum dolor content goes here</p>
         </div>
         <i class="right fly-in fa fa-times-circle" aria-hidden="true"></i>
     </div>

     <div class="below-fold-child">
         <img src="https://placehold.it/800x200">
         <div class="left below-fold-child-text">
             <h3>A short history of florida</h3>
             <p>The first people reached Florida before 10,000 BC. They were hunters and gatherers. At the time the world was in grip of an ice age and huge animals like mastodons roamed what is now Florida. After the end of the ice age shellfish were abundant and by 2,000 BC the people of Florida were making pottery. Ater 1,500 BC they also built burial mounds.</p>
         </div>
         <i class="left fly-in fa fa-times-circle" aria-hidden="true"></i>
    </div> 


标题
Lorem Ipsum dolor内容在这里

佛罗里达的短暂历史
第一批人在公元前10000年前到达佛罗里达。他们是猎人和采集者。当时世界正处于冰河时期，像乳齿象这样的大型动物在现在的佛罗里达州游荡。冰河时代结束后，贝类丰富，到公元前2000年，佛罗里达人开始制作陶器。公元前1500年以后，他们还建造了土墩


如果有更好的方法问这个问题，也请告诉我。我是StackOverflow的新手。
我想我可能已经找到了解决方案！非常感谢所有回复并提出编辑建议的人。帮助我跳出框框思考，并向我展示了$（“class”，这个）的含义。干杯

$(".below-fold-child").each(function(){
    var toSelect = $(".below-fold-child-text",this); 
    $(".toclick", this).on("click", function(){
        console.log(toSelect)
        $(toSelect).toggleClass("right-show")
    });
});

您可以使用您的问题示例设置一个，以帮助其他用户进行测试并找到解决方案。请查看有关上下文选择器的信息，或者@T30将设置一个提琴并查看该问题。还要注意，jquery toggleClass不希望参数中有点：只需要类名（不带“.”）