<!DOCTYPE html>
<html>
<head>
<style>
.imgbox {
float: left;
text-align: center;
width: 120px;
border: 1px solid gray;
margin: 4px;
padding: 6px;
}
button {
width: 100%;
}
.displayNone{
display:none;
}
.vhidden{
visibility:hidden;
}
</style>
</head>
<body>
<h3>Difference between display:none and visiblity: hidden</h3>
<p><strong>visibility:hidden</strong> hides the element, but it still takes up space in the layout.</p>
<p><strong>display:none</strong> removes the element from the document. It does not take up any space.</p>
<div class="imgbox" id="imgbox1">Box 1<br>
<img src="img_5terre.jpg" alt="Italy" style="width:100%">
<button onclick="removeElement()">Remove</button>
</div>
<div class="imgbox" id="imgbox2">Box 2<br>
<img src="img_lights.jpg" alt="Lights" style="width:100%">
<button onclick="changeVisibility()">Hide</button>
</div>
<div class="imgbox">Box 3<br>
<img src="img_forest.jpg" alt="Forest" style="width:100%">
<button onclick="resetElement()">Reset All</button>
</div>
<script>
function removeElement() {
//document.getElementById("imgbox1").style.display = "none";
document.getElementById("imgbox1").classList.add("vhidden");
}
function changeVisibility() {
//document.getElementById("imgbox2").style.visibility = "hidden";
document.getElementById("imgbox2").classList.add("vhidden");
}
function resetElement() {
document.getElementById("imgbox1").classList.toggle("vhidden");
document.getElementById("imgbox2").classList.toggle("vhidden");
}
</script>
</body>
</html>
來源：https://www.w3schools.com/css/tryit.asp?filename=trycss_display
創作內容
js add&toggle class
心情 (111)