/* Styles for the popup window and overlay */ .popup { display: none; /* Hidden by default */ position: fixed; z-index: 1; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgb(0,0,0); background-color: rgba(0,0,0,0.4); padding-top: 14%; } .popup-content { background-color: #fefefe; margin: 5% auto; padding: 20px; border: 1px solid #888; width: 80%; max-width: 600px; } .close-btn { color: #aaa; float: right; font-size: 28px; font-weight: bold; } .close-btn:hover, .close-btn:focus { color: black; text-decoration: none; cursor: pointer; } This Corvette Track Jacket is an iconic Nike style with dual white stripes going down the sleeves. Details include a zip-through cadet collar, dyed-to-match zipper and dyed-to-match zippered front pockets. The contrast embroidered Swoosh logo is on the center back, below the collar. 100% polyester. Care InstructionsWash inside out. Wash with like colors. Fasten all closures to wash and dry. Do not use softeners. Do not allow to lay on itself when wet. Remove immediately. Size Chart × HOW TO MEASURE CHEST SIZE Measure around the fullest part of the chest, under the arms and around the shoulder blades. Men's Medium Large XL XXL XXXL Chest (in) 37.5-41 41-44 44-48.5 48.5-53.5 53.5-58 Length (in) 27.13 27.88 28.75 29.5 30.25 // Get the popup var popup = document.getElementById("popup"); // Get the button that opens the popup var btn = document.getElementById("popupBtn"); // Get the element that closes the popup var span = document.getElementsByClassName("close-btn")[0]; // When the user clicks the button, open the popup btn.onclick = function() { popup.style.display = "block"; } // When the user clicks on (x), close the popup span.onclick = function() { popup.style.display = "none"; } // When the user clicks anywhere outside of the popup, close it window.onclick = function(event) { if (event.target == popup) { popup.style.display = "none"; } }