记住用户名密码
<!DOCTYPE html>
<html>
<head>
<title>demo</title>
<style type="text/css">
.notice-content {
position: relative;
width: 800px;
height: 30px;
white-space: nowrap;
overflow: hidden;
float: left;
display: inline-block;
/*margin-left: 55px;*/
/*margin-top: -30px; */
}
.notice-text {
display: inline-block;
color: red;
font-size: 14px;
position: absolute;
width: 100%;
height: 100%;
cursor: pointer;
}
</style>
</head>
<body>
<span class="notice-content">
<span class="notice-text">
公告内容
</span>
</span>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
// 公告滚动
$(".notice-content").textScroll();
});
/**
* 从右往左滚动文字
* @returns {undefined}
*/
$.fn.textScroll = function() {
// 滚动步长(步长越大速度越快)
var step_len = 60;
var this_obj = $(this);
var child = this_obj.children();
var this_width = this_obj.width();
var child_width = child.width();
var continue_speed = undefined;// 暂停后恢复动画速度
// 初始文字位置
child.css({
left: this_width
});
// 初始动画速度speed
var init_speed = (child_width + this_width) / step_len * 1000;
// 滚动动画
function scroll_run(continue_speed) {
var speed = (continue_speed == undefined ? init_speed : continue_speed);
child.animate({
left: -child_width
}, speed, "linear", function() {
$(this).css({
left: this_width
});
scroll_run();
});
}
// 鼠标动作
child.on({
mouseenter: function() {
var current_left = $(this).position().left;
$(this).stop();
continue_speed = (-(-child_width - current_left) / step_len) * 1000;
},
mouseleave: function() {
scroll_run(continue_speed);
continue_speed = undefined;
}
});
// 启动滚动
scroll_run();
};
</script>
</body>
</html>
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