<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>chart_room</title> <style> .chart_room { width: 100%; height: 300px; border: 1px solid #3b0101; overflow: auto; } .chart_room::-webkit-scrollbar { width: 8px; height: 8px; } /*正常情况下滑块的样式*/ .chart_room::-webkit-scrollbar-thumb { background-color: rgba(0, 0, 0, .05); border-radius: 10px; -webkit-box-shadow: inset 1px 1px 0 rgba(0, 0, 0, .1); } /*鼠标悬浮在该类指向的控件上时滑块的样式*/ .chart_room:hover::-webkit-scrollbar-thumb { background-color: rgba(0, 0, 0, .2); border-radius: 10px; -webkit-box-shadow: inset 1px 1px 0 rgba(0, 0, 0, .1); } /*鼠标悬浮在滑块上时滑块的样式*/ .chart_room::-webkit-scrollbar-thumb:hover { background-color: rgba(0, 0, 0, .4); -webkit-box-shadow: inset 1px 1px 0 rgba(0, 0, 0, .1); } /*正常时候的主干部分*/ .chart_room::-webkit-scrollbar-track { border-radius: 10px; -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0); background-color: white; } /*鼠标悬浮在滚动条上的主干部分*/ .chart_room::-webkit-scrollbar-track:hover { -webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, .4); background-color: rgba(0, 0, 0, .01); } div { margin: 0; padding: 0; } .round_icon { width: 34px; height: 34px; display: flex; border-radius: 50%; margin-top: -10px; align-items: center; justify-content: center; overflow: hidden; } </style> </head> <body> <!--聊天室--> <div class="chart_room" id="id_chart_room"></div> <!--发送按钮--> <div> <input type="text" id="id_text" name="text"> <input type="button" value="发送" id="id_button"> <input type="button" value="关闭链接" id="id_close"> </div>
<script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <script> // 滑轮自动移动 $(function () { clickIdButton(); }); function clickIdButton() { $("#id_button").click(function () { //设置按钮的点击事件 $time = setInterval(function () { //清理定时器时使用 var oldTop = id_chart_room.scrollTop; //获得老位置 var newTop = oldTop + 5; //得到新位置 id_chart_room.scrollTop = newTop; //将计算的新位置进行赋值,使滚动条移动 }, 10) //循环时间 }) } </script>