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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="horizontal-line">
  <div class="line line-01"></div>
  <div class="line line-02"></div>
</div>

<section class="first-section">
  <div class="container">
    <div class="row">
      <div class="col-xl-6 col-lg-6 col-md-6 col-sm-6 col-6">
        <div class="widgets">
          <div class="widget widget-01">
            <div class="widget-head">
              <h3 class="title"><span>Title 01</span><div class="bottom-line-trigger"></div></h3>
            </div>
            <div class="widget-body">
              <div class="generic-text">
                <p>Cingebant duas fronde illas et ripis fronde. Egens abscidit permisit sata descenderat semina cepit hominum. Mentes mundo pronaque temperiemque minantia fulgura fert. Duae mollia nec. Prima aequalis quae pinus mentisque onerosior invasit quisque! Fluminaque caesa vis hunc cinxit mutatas aere utramque dissociata auroram.</p>
                <p>Coeperunt aliis tellure sive locis timebat ita eodem. Modo non flexi orbe semine. Tractu aequalis dissaepserat ignea super pulsant dissociata! Quam grandia montibus nunc umor duas tollere natus fidem! Locavit aethera induit colebat terra triones. Mollia tegi adhuc congeriem descenderat caesa crescendo vultus.</p>
              </div>
            </div>
          </div>
          
          <div class="widget widget-02">
            <div class="widget-head">
              <h3 class="title"><span>Title 02</span><div class="top-line-trigger"></div><div class="bottom-line-trigger"></div></h3>
            </div>
            <div class="widget-body">
              <div class="generic-text">
                <p>Cingebant duas fronde illas et ripis fronde. Egens abscidit permisit sata descenderat semina cepit hominum. Mentes mundo pronaque temperiemque minantia fulgura fert. Duae mollia nec. Prima aequalis quae pinus mentisque onerosior invasit quisque! Fluminaque caesa vis hunc cinxit mutatas aere utramque dissociata auroram.</p>
                <p>Coeperunt aliis tellure sive locis timebat ita eodem. Modo non flexi orbe semine. Tractu aequalis dissaepserat ignea super pulsant dissociata! Quam grandia montibus nunc umor duas tollere natus fidem! Locavit aethera induit colebat terra triones. Mollia tegi adhuc congeriem descenderat caesa crescendo vultus.</p>
                <p>Totidemque his nubes sunt quoque quam arce ad liberioris. Origine aberant undas. Turba cura aethera. Tempora mentes illas recessit deorum. Tempora pondus aestu hunc. Invasit aberant caecoque spectent astra. Ille sanctius rerum finxit minantia ultima bracchia! Derecti silvas gravitate caesa terrarum pendebat librata.</p>
              </div>
            </div>
          </div>
        </div>
      </div>
      <div class="col-xl-6 col-lg-6 col-md-6 col-sm-6 col-6">
        <div class="widgets">
          <div class="widget widget-03">
            <div class="widget-head">
              <h3 class="title"><span>Title 03</span><div class="top-line-trigger"></div></h3>
            </div>
            <div class="widget-body">
              <div class="generic-text">
                <p>Cingebant duas fronde illas et ripis fronde. Egens abscidit permisit sata descenderat semina cepit hominum. Mentes mundo pronaque temperiemque minantia fulgura fert. Duae mollia nec. Prima aequalis quae pinus mentisque onerosior invasit quisque! Fluminaque caesa vis hunc cinxit mutatas aere utramque dissociata auroram.</p>
                <p>Coeperunt aliis tellure sive locis timebat ita eodem. Modo non flexi orbe semine. Tractu aequalis dissaepserat ignea super pulsant dissociata! Quam grandia montibus nunc umor duas tollere natus fidem! Locavit aethera induit colebat terra triones. Mollia tegi adhuc congeriem descenderat caesa crescendo vultus.</p>
                <p>Totidemque his nubes sunt quoque quam arce ad liberioris. Origine aberant undas. Turba cura aethera. Tempora mentes illas recessit deorum. Tempora pondus aestu hunc. Invasit aberant caecoque spectent astra. Ille sanctius rerum finxit minantia ultima bracchia! Derecti silvas gravitate caesa terrarum pendebat librata.</p>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</section>
!

CSS 

              
                .horizontal-line {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.horizontal-line .line {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 1px;
}
.horizontal-line .line.line-01 {
  background-color: blue;
}
.horizontal-line .line.line-02 {
  background-color: green;
}
.widgets {
  display: -ms-flexbox;
    display: flex;
  -ms-flex-direction: column;
    flex-direction: column;
  height: 100%;
}
.widget {
  margin-top: 60px;
  margin-bottom: 60px;
  position: relative;
}

@media screen and (min-width: 992px) {
  .widget {
    margin-top: 80px;
    margin-bottom: 80px;
  }
}

.widget + .widget {
  margin-top: 0;
}
.widget .widget-head .title {
  position: relative;
  font-size: 24px;
}

@media screen and (min-width: 992px) {
  .widget .widget-head .title {
    font-size: 30px;
  }
}

.widget .widget-head .title .top-line-trigger {
  position: absolute;
  top: 8px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: red;
}
.widget .widget-head .title .bottom-line-trigger {
  position: absolute;
  left: 0;
  bottom: 5px;
  width: 100%;
  height: 1px;
  background-color: black;
}

.widget .widget-body .generic-text p {
  font-size: 14px;
}

@media screen and (min-width: 992px) {
  .widget .widget-body .generic-text p {
    font-size: 16px;
  }
}
!

JS 

              
                $(document).ready(function(){
  if(!$(".first-section").length) {
    return false;
  }
  
  var tl = null;
  
  function resize() {
    // if (window.innerWidth > 1200) {
      var firstSection = $(".first-section");
      
      if(firstSection.length) {
        
        var horizontalLine = $(".horizontal-line"),
          lineOne = horizontalLine.find(".line-01"),
          lineTwo = horizontalLine.find(".line-02"),
          topLineTrigger2 = firstSection.find(".widget-02 .top-line-trigger"),
          topLineTrigger3 = firstSection.find(".widget-03 .top-line-trigger"),
          bottomLineTrigger1 = firstSection.find(".widget-01 .bottom-line-trigger"),
          bottomLineTrigger2 = firstSection.find(".widget-02 .bottom-line-trigger"),
          widgetToMiddle = firstSection.find(".widget-03"),
          tl = gsap.timeline({onComplete: myFunction});
        
        gsap.set([lineOne, widgetToMiddle, lineTwo], { clearProps: true });
        
         var widget03SetTop = bottomLineTrigger2.offset().top - topLineTrigger3.offset().top,
          widget03ToTop = topLineTrigger2.offset().top - topLineTrigger3.offset().top
        ;
        
        
        
        tl
         .set(lineOne, {top: bottomLineTrigger2.offset().top + 50}, "setlabel")
         .to(lineOne, {top: bottomLineTrigger2.offset().top, duration: 2}, "tolabel")
         .set(widgetToMiddle, {top: widget03SetTop}, "setlabel")
         .to(widgetToMiddle, {top: widget03ToTop,  duration: 2})
         .set(lineTwo, {top: bottomLineTrigger1.offset().top + 50}, "setlabel")
         .to(lineTwo, {top: bottomLineTrigger1.offset().top, duration: 2}, "tolabel")
        ;
        
        function myFunction() {
          console.log("xxx");
        }
      }
    // }
  }
  
  $(window).resize(function(){
    if (tl !== null) {
      tl.kill();
      // tl.pause();
      // tl.play(0);
    }
    resize();
  });
  
  resize();
});
!
999px

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