Thanks to sites such as this, I have learned HTML, CSS, PHP and SQL to a fairly good standard. However, I am really struggling with Javascript.
In my specific case I have concluded that for my menu I would be better using tabs rather than dropdowns- I know that’s an ongoing debate, but for me, I have found this to be the best solution.
I learned about tabs from W3Schools and used their example to try and make every tab close when they lost focus, but I cannot find any way of doing so. For reference, I attach the bare bones example from W3Schools below (permitted as per their T&C). Be assured that I am not being lazy and I already understand how to convert this to PC/smartphone responsive (including hamburger menu) and will be populating the menu by database driven PHP/SQL- but it’s just “as is” here to avoid confusion.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {font-family: Arial;}
/* Style the tab */
.tab {
overflow: hidden;
border: 1px solid #ccc;
background-color: #f1f1f1;
}
/* Style the buttons inside the tab */
.tab button {
background-color: inherit;
float: left;
border: none;
outline: none;
cursor: pointer;
padding: 14px 16px;
transition: 0.3s;
font-size: 17px;
}
/* Change background color of buttons on hover */
.tab button:hover {
background-color: #ddd;
}
/* Create an active/current tablink class */
.tab button.active {
background-color: #ccc;
}
/* Style the tab content */
.tabcontent {
display: none;
padding: 6px 12px;
border: 1px solid #ccc;
border-top: none;
}
/* Style the close button */
.topright {
float: right;
cursor: pointer;
font-size: 28px;
}
.topright:hover {color: red;}
</style>
</head>
<body>
<h2>Tabs</h2>
<p>Click on the x button in the top right corner to close the current tab:</p>
<div class="tab">
<button class="tablinks" onclick="openCity(event, 'London')" id="defaultOpen">London</button>
<button class="tablinks" onclick="openCity(event, 'Paris')">Paris</button>
<button class="tablinks" onclick="openCity(event, 'Tokyo')">Tokyo</button>
</div>
<div id="London" class="tabcontent">
<span onclick="this.parentElement.style.display='none'" class="topright">×</span>
<h3>London</h3>
<p>London is the capital city of England.</p>
</div>
<div id="Paris" class="tabcontent">
<span onclick="this.parentElement.style.display='none'" class="topright">×</span>
<h3>Paris</h3>
<p>Paris is the capital of France.</p>
</div>
<div id="Tokyo" class="tabcontent">
<span onclick="this.parentElement.style.display='none'" class="topright">×</span>
<h3>Tokyo</h3>
<p>Tokyo is the capital of Japan.</p>
</div>
<script>
function openCity(evt, cityName) {
var i, tabcontent, tablinks;
tabcontent = document.getElementsByClassName("tabcontent");
for (i = 0; i < tabcontent.length; i++) {
tabcontent[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablinks");
for (i = 0; i < tablinks.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" active", "");
}
document.getElementById(cityName).style.display = "block";
evt.currentTarget.className += " active";
}
// Get the element with id="defaultOpen" and click on it
document.getElementById("defaultOpen").click();
</script>
</body>
</html>
I have tried this
<div id="London" class="tabcontent" onblur="style.display.visibility='none'">Lorem Ipsum....</div>
for each and many similar examples, but nothing seems to work.
I have also tried several ‘listening’ for onclick etc as described, but I can’t get any to work.
I can find 100s of people asking this or a similar question, but I just don’t understand what I need to copy or change for my example. What would really be helpful is not only the few lines of code that I know I am missing but someone adding “this bit here does this, that bit there does that…>” as that would help me understand.
Many thanks in advance. Apologies if I haven’t asked this question well- despite learning everything else in this last year, this is my first time asking on a forum.
