[html]<div id="myDIV">
<button class="btn">1</button>
<button class="btn active">2</button>
<button class="btn">3</button>
<button class="btn">4</button>
<button class="btn">5</button>
</div>
<style>
/* Style the buttons */
.btn {
border: none;
outline: none;
padding: 10px 16px;
background-color: #f1f1f1;
cursor: pointer;
}
/* Style the active class (and buttons on mouse-over) */
.active, .btn:hover {
background-color: #666;
color: white;
}
</style>
<script>
// Get the container element
var btnContainer = document.getElementById("myDIV");
// Get all buttons with class="btn" inside the container
var btns = btnContainer.getElementsByClassName("btn");
// Loop through the buttons and add the active class to the current/clicked button
for (var i = 0; i < btns.length; i++) {
btns[i].addEventListener("click", function() {
var current = document.getElementsByClassName("active");
current[0].className = current[0].className.replace(" active", "");
this.className += " active";
});
}
</script>
[/html]
Шаг 1) добавить HTML:
<div id="myDIV"> <button class="btn">1</button> <button class="btn active">2</button> <button class="btn">3</button> <button class="btn">4</button> <button class="btn">5</button> </div>
Шаг 2) добавить CSS:
/* Style the buttons */
.btn {
border: none;
outline: none;
padding: 10px 16px;
background-color: #f1f1f1;
cursor: pointer;
}
/* Style the active class (and buttons on mouse-over) */
.active, .btn:hover {
background-color: #666;
color: white;
}
Шаг 3) добавить JavaScript:
// Get the container element
var btnContainer = document.getElementById("myDIV");
// Get all buttons with class="btn" inside the container
var btns = btnContainer.getElementsByClassName("btn");
// Loop through the buttons and add the active class to the current/clicked button
for (var i = 0; i < btns.length; i++) {
btns[i].addEventListener("click", function() {
var current = document.getElementsByClassName("active");
current[0].className = current[0].className.replace(" active", "");
this.className += " active";
});
}
- Подпись автора