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Bubbles Content Slideshow Application JavaScript CSS HTML

Bubble slideshow application that you can implement into your projects and customize to your liking. Every line of JavaScript is well commented so that you can determine what is happening in the script more easily and alter it. example.html <style> #bubblebox{ width:650px; height:250px; margin:50px auto; border:1px solid #AAA; } #bubbles{ width:auto; margin:0px auto; text-align:center; } #bubbles > div{ display:inline-block; width:10px; height:10px; margin:24px 10px 0px 10px; background:rgba(0,0,0,.1); text-align:center; border:2px solid #999; border-radius:100%; font-size:17px; text-decoration:none; transition: background 0.3s linear 0s; cursor:pointer; } #bubblecontent{ margin:0px auto; transition:opacity 0.3s linear 0s; font-family: Arial;} #bubblecontent > h2{ text-align:center; color:#7EA800; } #bubblecontent > p{ font-size:17px; line-height:1.5em; padding:20px 50px; color:#777; } </style> <script> // This simple function returns object reference for elements by ID function _(x){return document.getElementById(x);} // Variables for bubble array, bubble index, and the setInterval() variable var ba, bi=0, intrvl; // bca - Bubble Content Array. Put your content here. var bca = [ '<h2>Heading Number 1</h2><p>Content for section 1</p>', '<h2>Heading Number 2</h2><p>Content for section 2</p>', '<h2>Heading Number 3</h2><p>Content for section 3</p>', '<h2>Heading Number 4</h2><p>Content for section 4</p>' ]; // This function is triggered by the bubbleSlide() function below function bubbles(bi){ // Fade-out the content _("bubblecontent").style.opacity = 0; // Loop over the bubbles and change all of their background color for(var i=0; i < ba.length; i++){ ba[i].style.background = "rgba(0,0,0,.1)"; } // Change the target bubble background to be darker than the rest ba[bi].style.background = "#999"; // Stall the bubble and content changing for just 300ms setTimeout(function(){ // Change the content _("bubblecontent").innerHTML = bca[bi]; // Fade-in the content _("bubblecontent").style.opacity = 1; }, 300); } // This function is set to run every 5 seconds(5000ms) function bubbleSlide(){ bi++; // Increment the bubble index number // If bubble index number is equal to the amount of total bubbles if(bi == ba.length){ bi = 0; // Reset the bubble index to 0 so it loops back at the beginning } // Make the bubbles() function above run bubbles(bi); } // Start the application up when document is ready window.addEventListener("load", function(){ // Get the bubbles array ba = _("bubbles").children; // Set the interval timing for the slideshow speed intrvl = setInterval(bubbleSlide, 5000); }); </script> <div id="bubblebox"> <div id="bubbles"> <div onclick="bubbles(0); clearInterval(intrvl);" style="background:#999;"></div> <div onclick="bubbles(1); clearInterval(intrvl);"></div> <div onclick="bubbles(2); clearInterval(intrvl);"></div> <div onclick="bubbles(3); clearInterval(intrvl);"></div> </div> <div id="bubblecontent"> <h2>Heading Number 1</h2> <p>Content for section 1</p> </div> </div>
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