Animated Hero Slider

Animated Hero Slider with Pure JS

by Torwan

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300"></script>
<link href="https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300" rel="stylesheet">
<div class="slider-container">
  <div class="slider-control left inactive"></div>
  <div class="slider-control right"></div>
  <ul class="slider-pagi"></ul>
  <div class="slider">
    <div class="slide slide-0 active">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading" style="font-family: 'Open Sans Condensed', sans-serif;">Big Data. Realtime Insight.</h2>
          <p class="slide__text-desc" style="font-family: 'Open Sans Condensed', sans-serif;"> Content is automatically generated, sales emails, customer retention emails, and custom landing pages are generated based on site content using natural language processing to create relevant marketing content and distribute it across multiple channels.</p>
          <a class="slide__text-link" style="font-family: 'Open Sans Condensed', sans-serif;">Learn More</a>
        </div>
      </div>
    </div>
    <div class="slide slide-1 ">
      <div class="slide__bg"></div>
      <div class="slide__content">
        <svg class="slide__overlay" viewBox="0 0 720 405" preserveAspectRatio="xMaxYMax slice">
          <path class="slide__overlay-path" d="M0,0 150,0 500,405 0,405" />
        </svg>
        <div class="slide__text">
          <h2 class="slide__text-heading" style="font-family: 'Open Sans Condensed', sans-serif;">Disrupting Industries</h2>
          <p class="slide__text-desc" style="font-family: 'Open Sans Condensed', sans-serif;">WebCorpCo is all about making sure...

SCSS

@font-face {
  src: url("https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300");
  font-family: 'Open Sans Condensed', sans-serif;
}
.slide__text-desc {
  font-family: 'Open Sans Condensed', sans-serif;
}

*, *:before, *:after {
  box-sizing: border-box;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  font-size: 62.5%;
  height: 100%;
  overflow: hidden;
}

body {
  background: #000;
}

svg {
  display: block;
  overflow: visible;
}

.slider-container {
  position: relative;
  height: 100%;
  user-select: none;
  cursor: all-scroll;
}

.slider-control {
  z-index: 2;
  position: absolute;
  top: 0;
  width: 12%;
  height: 100%;
  transition: opacity 0.3s;
  will-change: opacity;
  opacity: 0;
}
.slider-control.inactive:hover {
  cursor: auto;
}
.slider-control:not(.inactive):hover {
  opacity: 1;
  cursor: pointer;
}
.slider-control.left {
  left: 0;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.18) 0%, transparent 100%);
}
.slider-control.right {
  right: 0;
  background: linear-gradient(to right, transparent 0%, rgba(0, 0, 0, 0.18) 100%);
}

.slider-pagi {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%);
  font-size: 0;
  list-style-type: none;
}
.slider-pagi__elem {
  position: relative;
  display: inline-block;
  vertical-align: top;
  width: 1rem;
  height: 1rem;
  margin: 0 0.5rem;
  border-radius: 50%;
  border: 2px solid #fff;
  cursor: pointer;
}
.slider-pagi__elem:before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 1.2rem;
  height: 1.2rem;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.3s;
  transform: translate(-50%, -50%) scale(0);
}
.slider-pagi__elem.active:before, .slider-pagi__elem:hover:before {
  transform: translate(-50%, -50%) scale(1);
}

.slider {
  z-index: 1;
  position: relative;
  height: 100%;
}
.slider.animating {
  transition: transform 0.5s;
  will-change: transform;
}
.slider.animating...

JavaScript

$(document).ready(function() {
  
  var $slider = $(".slider"),
      $slideBGs = $(".slide__bg"),
      diff = 0,
      curSlide = 0,
      numOfSlides = $(".slide").length-1,
      animating = false,
      animTime = 500,
      autoSlideTimeout,
      autoSlideDelay = 6000,
      $pagination = $(".slider-pagi");
  
  function createBullets() {
    for (var i = 0; i < numOfSlides+1; i++) {
      var $li = $("<li class='slider-pagi__elem'></li>");
      $li.addClass("slider-pagi__elem-"+i).data("page", i);
      if (!i) $li.addClass("active");
      $pagination.append($li);
    }
  };
  
  createBullets();
  
  function manageControls() {
    $(".slider-control").removeClass("inactive");
    if (!curSlide) $(".slider-control.left").addClass("inactive");
    if (curSlide === numOfSlides) $(".slider-control.right").addClass("inactive");
  };
  
  function autoSlide() {
    autoSlideTimeout = setTimeout(function() {
      curSlide++;
      if (curSlide > numOfSlides) curSlide = 0;
      changeSlides();
    }, autoSlideDelay);
  };
  
  autoSlide();
  
  function changeSlides(instant) {
    if (!instant) {
      animating = true;
      manageControls();
      $slider.addClass("animating");
      $slider.css("top");
      $(".slide").removeClass("active");
      $(".slide-"+curSlide).addClass("active");
      setTimeout(function() {
        $slider.removeClass("animating");
        animating = false;
      }, animTime);
    }
    window.clearTimeout(autoSlideTimeout);
    $(".slider-pagi__elem").removeClass("active");
    $(".slider-pagi__elem-"+curSlide).addClass("active");
    $slider.css("transform", "translate3d("+ -curSlide*100 +"%,0,0)");
    $slideBGs.css("transform", "translate3d("+ curSlide*50 +"%,0,0)");
    diff = 0;
    autoSlide();
  }

  function navigateLeft() {
    if (animating) return;
    if (curSlide > 0) curSlide--;
    changeSlides();
  }

  function navigateRight() {
    if (animating) return;
    if (curSlide < numOfSlides) curSlide++;
   ...