了解如何使用 CSS 和 JavaScript 创建小吃栏/吐司。
快捷栏通常用作工具提示/弹出窗口,在屏幕底部显示消息。
单击该按钮可显示小吃栏。 3秒后就会消失。
<!-- Use a button to open the snackbar -->
<button onclick="myFunction()">Show Snackbar</button>
<!-- The actual snackbar -->
<div id="snackbar">Some text some message..</div>
设置小吃栏的样式并添加动画:
/* The snackbar - position it at the bottom and in the middle of the screen */
#snackbar {
visibility: hidden; /* Hidden by default. Visible on click */
min-width: 250px; /* Set a default minimum width */
margin-left: -125px; /* Divide value of min-width by 2 */
background-color: #333; /* Black background color */
color: #fff; /* White text color */
text-align: center; /* Centered text */
border-radius: 2px; /* Rounded borders */
padding: 16px; /* Padding */
position: fixed; /* Sit on top of the screen */
z-index: 1; /* Add a z-index if needed */
left: 50%; /* Center the snackbar */
bottom: 30px; /* 30px from the bottom */
}
/* Show the snackbar when clicking on a button (class added with JavaScript) */
#snackbar.show {
visibility: visible; /* Show the snackbar */
/* Add animation: Take 0.5 seconds to fade in and out the snackbar.
However, delay the fade out process for 2.5 seconds */
-webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;
animation: fadein 0.5s, fadeout 0.5s 2.5s;
}
/* Animations to fade the snackbar in and out */
@-webkit-keyframes fadein {
from {bottom: 0; opacity: 0;}
to {bottom: 30px; opacity: 1;}
}
@keyframes fadein {
from {bottom: 0; opacity: 0;}
to {bottom: 30px; opacity: 1;}
}
@-webkit-keyframes fadeout {
from {bottom: 30px; opacity: 1;}
to {bottom: 0; opacity: 0;}
}
@keyframes fadeout {
from {bottom: 30px; opacity: 1;}
to {bottom: 0; opacity: 0;}
}
通过单击按钮,使用 JavaScript 将"show" 类添加到小吃栏容器:
function myFunction() {
// Get the snackbar DIV
var x = document.getElementById("snackbar");
// Add the "show" class to DIV
x.className = "show";
// After 3 seconds, remove the show class from DIV
setTimeout(function(){ x.className = x.className.replace("show", ""); }, 3000);
}
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