<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>1</title>
<style>
body {
background: -webkit-linear-gradient(top, rgb(203, 235, 219) 0%, rgb(55, 148, 192) 120%);
background: -moz-linear-gradient(top, rgb(203, 235, 219) 0%, rgb(55, 148, 192) 120%);
overflow: hidden;
font-family: '微软雅黑';
font-size: 16px;
height: 1500px;
}
.item {
200px;
height: 200px;
line-height: 30px;
box-shadow: 0 2px 10px 1px rgba(0, 0, 0, 0.2);
-webkit-box-shadow: 0 2px 10px 1px rgba(0, 0, 0, 0.2);
-moz-box-shadow: 0 2px 10px 1px rgba(0, 0, 0, 0.2);
}
#container p {
height: 80px;
margin: 30px 10px;
overflow: hidden;
word-wrap: break-word;
line-height: 1.5;
}
#container a {
position: relative;
left: 150px;
color: red;
font-size: 14px;
}
input {
display: block;
height: 30px;
padding: 0 1em;
line-height: 30px;
300px;
margin: 85px auto;
font-size: 20px;
}
</style>
<script src="jquery-3.4.1.min.js"></script>
<script>
(function ($) {
var container;
var colors = ['#96C2F1', '#BBE1F1', '#E3E197', '#F8B3D0', '#FFCC00'];
var createItem = function (text) {
var color = colors[parseInt(Math.random() * 5, 10)]
$('<div class="item"><p>' + text + '</p><a href="#">关闭</a></div>').css({ 'background': color }).appendTo(container).drag();
};
$.fn.drag = function () {
var $this = $(this);
var parent = $this.parent();
var pw = parent.width();
var ph = parent.height();
var thisWidth = $this.width() + parseInt($this.css('padding-left'), 10) + parseInt($this.css('padding-right'), 10);
var thisHeight = $this.height() + parseInt($this.css('padding-top'), 10) + parseInt($this.css('padding-bottom'), 10);
var x, y, positionX, positionY;
var isDown = false;
var randY = parseInt(Math.random() * (ph - thisHeight), 10);
var randX = parseInt(Math.random() * (pw - thisWidth), 10);
parent.css({
"position": "relative",
"overflow": "hidden"
});
$this.css({
"cursor": "move",
"position": "absolute"
}).css({
top: randY,
left: randX
}).mousedown(function (e) {
parent.children().css({
"zIndex": "0"
});
$this.css({
"zIndex": "1"
});
isDown = true;
x = e.pageX;
y = e.pageY;
positionX = $this.position().left;
positionY = $this.position().top;
return false;
});
$(document).mouseup(function (e) {
isDown = false;
}).mousemove(function (e) {
var xPage = e.pageX;
var moveX = positionX + xPage - x;
var yPage = e.pageY;
var moveY = positionY + yPage - y;
if (isDown == true) {
$this.css({
"left": moveX,
"top": moveY
});
} else {
return;
}
if (moveX < 0) {
$this.css({
"left": "0"
});
}
if (moveX > (pw - thisWidth)) {
$this.css({
"left": pw - thisWidth
});
}
if (moveY < 0) {
$this.css({
"top": "0"
});
}
if (moveY > (ph - thisHeight)) {
$this.css({
"top": ph - thisHeight
});
}
});
};
var init = function () {
container = $('#container');
container.on('click', 'a', function () {
$(this).parent().remove();
}).height(($(window).height() - 200) < 0 ? 520 : ($(window).height() - 200))
.width(($(window).width() - 200) < 0 ? '100%' : $(window).width());
var tests = ['能找一份好工作', '日语等级考试通过', '能交上女朋友', '新年来好运', '中大奖'];
$.each(tests, function (i, v) {
createItem(v);
});
$('#input').keydown(function (e) {
var $this = $(this);
if (e.keyCode == '13') {
var value = $this.val();
if (value) {
createItem(value);
$this.val('');
}
}
});
};
$(function () {
init();
});
})(jQuery);
</script>
</head>
<body>
<div id="container" style="height:520px;"></div>
<input id="input" type="text" placeholder="随便说说吧...按回车键发布" />
</body>
</html>