高手教你如何制作一个简单漂亮的前端聊天界面-html tutorial-php.cn

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一个简单的前端静态聊天界面，实现了聊天的基本功能，目前后台还没做，接下来还会继续更新后台和完善前台样式并更新。

一.Html代码

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>chat</title>
    <link rel="stylesheet" href="../css/chat.css" type="text/css">
    <script type="text/javascript" src="../js/chat.js"></script>
</head>
<body>
<p class="all">
    <p class="chat_index">
        <!--banner-->
        <p class="chat_banner">

        </p>

        <p class="chat_body">
            <!--在线列表-->
            <p class="chat_online">
                <!--搜索-->
                <p class="search_online">
                    <form>
                        <input type="text" placeholder="搜索联系人">
                    </form>
                </p>
                <p class="online_friend">
                    <ul>
                        <li>
                            <p class="a_friend">
                                <p class="head_portrait">
                                    <p class="head_text">
                                        黄
                                    </p>
                                </p>
                                <p class="friend">

                                    <p class="name">天狼星</p>
                                    <p class="this_time">4-12-15:10</p>

                                </p>
                            </p>
                        </li>
                        <li>
                            <p class="a_friend">
                                <p class="head_portrait">
                                    <p class="head_text">
                                        黄
                                    </p>
                                </p>
                                <p class="friend">

                                    <p class="name">天狼星</p>
                                    <p class="this_time">4-12-15:10</p>

                                </p>
                            </p>
                        </li>
                        <li>
                            <p class="a_friend">
                                <p class="head_portrait">
                                    <p class="head_text">
                                        黄
                                    </p>
                                </p>
                                <p class="friend">

                                    <p class="name">天狼星</p>
                                    <p class="this_time">4-12-15:10</p>

                                </p>
                            </p>
                        </li>
                        <li>
                            <p class="a_friend">
                                <p class="head_portrait">
                                    <p class="head_text">
                                        黄
                                    </p>
                                </p>
                                <p class="friend">

                                    <p class="name">天狼星</p>
                                    <p class="this_time">4-12-15:10</p>

                                </p>
                            </p>
                        </li>
                    </ul>
                </p>

            </p>
            <!--聊天界面-->
            <p class="chat_main">
                <p class="chat_p">
                    <ul id="chat_ul" class="chat_content">

                    </ul>

                </p>

                <p class="send_message">
                    <form>
                        <input type="text" placeholder="请输入消息" id="send_txt">
                        <input type="button" value="发送" id="send_btn">
                    </form>
                </p>
            </p>
            <!--名片-->
            <p class="chat_namecard">

            </p>
        </p>

    </p>
</p>
</body>
</html>

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二.CSS代码

有些需要注意的地方已经标上注释了

* {
    margin: 0;
    padding: 0;
    font-size: 12px;
    font-family: "微软雅黑";
}

.all {
    width: 100%;
    height: 790px;
    /*background-color: #7fa4f2;*/
    background: linear-gradient(to right, #879eee, #ba78dc); /* 标准的语法 */

}

.chat_index {
    width: 1000px;
    height: 600px;
    border: 1px solid black;
    position: relative;
    top: 100px;
    margin: 0 auto;
}

.chat_banner {
    background: linear-gradient(to right, #a41adc, #ee1351, #a41adc); /* 标准的语法 */
    width: 999px;
    height: 50px;
    border: 1px solid blue;
}

.chat_body {
    width: 999px;
    height: 546px;
    border: 1px solid red;
}

.chat_online {
    overflow: hidden;
    float: left;
    height: 546px;
    width: 200px;
    border: 1px solid yellow;
    background-color: white;
}

.search_online {
    text-indent: 2em;
    height: 40px;
    border: 1px solid black;
}

.search_online input[type="text"] {
    outline: none;
    margin: 2px auto;
    height: 30px;
    width: 60%;
    border-radius: 8px;
    text-indent: 2em;
}

.online_friend ul li {

    list-style-type: none;
}

.online_friend ul li {

    height: 60px;
    border-bottom: 1px solid #1c1f21;
    margin-top: 10px;
}

.a_friend {

    /*border: 1px solid #2328ff;*/
    height: 55px;
    background-color: #39fffe;

}

.head_portrait {

    background-color: #b532ff;
    margin: 6px 6px;
    float: left;
    height: 40px;
    width: 40px;
    border: 1px solid orangered;
    border-radius: 50%;
}

.head_text {
    padding: 3px;
    font-size: 22px;
    text-align: center;
    vertical-align: center;
    margin-top: 3px;
}

.friend {

    float: right;
    height: 54px;
    width: 140px;
    /*border: 1px solid rebeccapurple;*/
}

.friend .name {

    margin: 4px 6px;
    float: left;
}

.friend .this_time {
    margin-top: 4px;
    float: right;
}

.chat_main {
    float: left;
    width: 548px;
    height: 546px;
    border: 1px solid seagreen;
    /*background-color: white;*/
    background: url("../img/圣诞.jpg") no-repeat;
    background-size: cover;
}

.send_message {
    width: 548px;
    height: 65px;
    position: absolute;
    bottom: 0px;
    background: linear-gradient(to top, rgba(9, 216, 237, 0.99), #72cad4);
}

.send_message input[type="text"] {
    width: 470px;
    height: 30px;
    margin-top: 16px;
    margin-left: 10px;
    border-radius: 10px 0 0 10px;
    text-indent: 2em;
    outline: none;
    background-color: white;
    border: none;
}

.send_message input[type="button"] {
    border-radius: 0 10px 10px 0;
    width: 35px;
    height: 30px;
    background-color: white;
    border: none;
    margin-left: 0;
    background-color: white;
    border: none;
    outline: none;

}

.send_message input[type="button"]:hover {
    background-color: orangered;
}

.send_message input[type="button"]:active {
    background-color: #879eee;
}

.chat_namecard {
    float: left;
    width: 245px;
    height: 546px;
    border: 1px solid saddlebrown;
    background-color: #f1fea9;
}


.chat_content ul{
list-style-type: none;
}
.chat_content{
    overflow: auto;
    width: 540px;
    /*设置高度滚动条才有效*/
    height: 470px;
}
.chat_content li{
    margin-top: 10px;
    width: 540px;
    clear: both;
    display: block;

}

.chat_content li img{
    margin: 6px 0 0 0;
}

.chat_content li span {
    background: #ffd351;
    padding: 10px;
    border-radius: 10px;
    /*最大宽度不能太长，不然布局会混乱*/
    max-width: 400px;
    border: 1px solid white;
    box-shadow: 0 0 3px #879eee;
    margin: 6px 10px 0 10px;
    overflow: hidden;
}

.chat_content li img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.chat_content li img.imgleft {
 margin-left: 10px;
    float: left;
}

.chat_content li img.imgright {
 margin-right: 10px;
    float: right;
}

.chat_content li span.spanleft {
    float: left;
}

.chat_content li span.spanright {
    float: right;
}

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三.JS代码

window.onload = function () {
    var user = ["../img/img_17.jpg"];
    var num = 1;//判断左右
    var portrait_position = 0;
    var now = -1;//左右浮动
    var send_btn = document.getElementById('send_btn');
    var send_txt = document.getElementById('send_txt');
    var chat_ul = document.getElementById('chat_ul');
    var chat_span = chat_ul.getElementsByTagName('span');
    var chat_img = chat_ul.getElementsByTagName('img');
    send_btn.onclick = function () {
        if (send_txt.value == '') {
            alert("请不要惜字如金");
        } else {
            chat_ul.innerHTML += '<li><img src="../img/img_24.jpg"><span>' + send_txt.value + '</span>';
            now++;
            if (num==0) {
                chat_span[now].className = 'spanright';
                chat_img[now].className = 'imgright';
            }
             else {
                chat_span[now].className = 'spanleft';
                chat_img[now].className = 'imgleft';
            }
            send_txt.value = '';
            // 内容过多时,将滚动条放置到最底端
            /*contentcontent.scrollTop = content.scrollHeight;*/
        }
    }


}

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num 消息显示在左边还是右边，根据后台请求来操作