Simple Messaging Ui in HTML CSS with Example

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Simple Messaging Ui HTML CSS With Example
Code Snippet:Direct Messaging
Author: Momcilo Popov
Published: January 14, 2024
Last Updated: January 22, 2024
Downloads: 1,670
License: MIT
Edit Code online: View on CodePen
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This code creates a basic messaging UI (user interface) with HTML and CSS. It allows you to select and display chat conversations with different users. The code dynamically sets the active chat when a user is clicked, providing a straightforward way to manage messaging interactions.

It provides a foundation for implementing a basic messaging user interface on your website. You can use this UI design to allow users to facilitate real-time chat, making it suitable for customer support, private messaging, discussion forums, collaborative projects, online communities, and notification systems.

How to Create Simple Messaging UI In HTML CSS

1. First of all, load the Google Fonts ad Reset CSS by adding the following CDN links into the head tag of your HTML document.

<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,600" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">

2. Create the HTML structure for the messaging app as follows:

<div class="wrapper">
    <div class="container">
        <div class="left">
            <div class="top">
                <input type="text" placeholder="Search" />
                <a href="javascript:;" class="search"></a>
            </div>
            <ul class="people">
                <li class="person" data-chat="person1">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/thomas.jpg" alt="" />
                    <span class="name">Thomas Bangalter</span>
                    <span class="time">2:09 PM</span>
                    <span class="preview">I was wondering...</span>
                </li>
                <li class="person" data-chat="person2">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/dog.png" alt="" />
                    <span class="name">Dog Woofson</span>
                    <span class="time">1:44 PM</span>
                    <span class="preview">I've forgotten how it felt before</span>
                </li>
                <li class="person" data-chat="person3">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/louis-ck.jpeg" alt="" />
                    <span class="name">Louis CK</span>
                    <span class="time">2:09 PM</span>
                    <span class="preview">But we’re probably gonna need a new carpet.</span>
                </li>
                <li class="person" data-chat="person4">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/bo-jackson.jpg" alt="" />
                    <span class="name">Bo Jackson</span>
                    <span class="time">2:09 PM</span>
                    <span class="preview">It’s not that bad...</span>
                </li>
                <li class="person" data-chat="person5">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/michael-jordan.jpg" alt="" />
                    <span class="name">Michael Jordan</span>
                    <span class="time">2:09 PM</span>
                    <span class="preview">Wasup for the third time like is 
you blind bitch</span>
                </li>
                <li class="person" data-chat="person6">
                    <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/drake.jpg" alt="" />
                    <span class="name">Drake</span>
                    <span class="time">2:09 PM</span>
                    <span class="preview">howdoyoudoaspace</span>
                </li>
            </ul>
        </div>
        <div class="right">
            <div class="top"><span>To: <span class="name">Dog Woofson</span></span></div>
            <div class="chat" data-chat="person1">
                <div class="conversation-start">
                    <span>Today, 6:48 AM</span>
                </div>
                <div class="bubble you">
                    Hello,
                </div>
                <div class="bubble you">
                    it's me.
                </div>
                <div class="bubble you">
                    I was wondering...
                </div>
            </div>
            <div class="chat" data-chat="person2">
                <div class="conversation-start">
                    <span>Today, 5:38 PM</span>
                </div>
                <div class="bubble you">
                    Hello, can you hear me?
                </div>
                <div class="bubble you">
                    I'm in California dreaming
                </div>
                <div class="bubble me">
                    ... about who we used to be.
                </div>
                <div class="bubble me">
                    Are you serious?
                </div>
                <div class="bubble you">
                    When we were younger and free...
                </div>
                <div class="bubble you">
                    I've forgotten how it felt before
                </div>
            </div>
            <div class="chat" data-chat="person3">
                <div class="conversation-start">
                    <span>Today, 3:38 AM</span>
                </div>
                <div class="bubble you">
                    Hey human!
                </div>
                <div class="bubble you">
                    Umm... Someone took a shit in the hallway.
                </div>
                <div class="bubble me">
                    ... what.
                </div>
                <div class="bubble me">
                    Are you serious?
                </div>
                <div class="bubble you">
                    I mean...
                </div>
                <div class="bubble you">
                    It’s not that bad...
                </div>
                <div class="bubble you">
                    But we’re probably gonna need a new carpet.
                </div>
            </div>
            <div class="chat" data-chat="person4">
                <div class="conversation-start">
                    <span>Yesterday, 4:20 PM</span>
                </div>
                <div class="bubble me">
                    Hey human!
                </div>
                <div class="bubble me">
                    Umm... Someone took a shit in the hallway.
                </div>
                <div class="bubble you">
                    ... what.
                </div>
                <div class="bubble you">
                    Are you serious?
                </div>
                <div class="bubble me">
                    I mean...
                </div>
                <div class="bubble me">
                    It’s not that bad...
                </div>
            </div>
            <div class="chat" data-chat="person5">
                <div class="conversation-start">
                    <span>Today, 6:28 AM</span>
                </div>
                <div class="bubble you">
                    Wasup
                </div>
                <div class="bubble you">
                    Wasup
                </div>
                <div class="bubble you">
                    Wasup for the third time like is <br />you blind bitch
                </div>

            </div>
            <div class="chat" data-chat="person6">
                <div class="conversation-start">
                    <span>Monday, 1:27 PM</span>
                </div>
                <div class="bubble you">
                    So, how's your new phone?
                </div>
                <div class="bubble you">
                    You finally have a smartphone 😀
                </div>
                <div class="bubble me">
                    Drake?
                </div>
                <div class="bubble me">
                    Why aren't you answering?
                </div>
                <div class="bubble you">
                    howdoyoudoaspace
                </div>
            </div>
            <div class="write">
                <a href="javascript:;" class="write-link attach"></a>
                <input type="text" />
                <a href="javascript:;" class="write-link smiley"></a>
                <a href="javascript:;" class="write-link send"></a>
            </div>
        </div>
    </div>
</div>

3. Use the following CSS to style the chat interface. You can modify the CSS rules to match your website/app template.

@charset "UTF-8";
*, *:before, *:after {
  box-sizing: border-box !important;
}

:root {
  --white: #fff;
  --black: #000;
  --bg: #f8f8f8;
  --grey: #999;
  --dark: #1a1a1a;
  --light: #e6e6e6;
  --wrapper: 1000px;
  --blue: #00b0ff;
}

body {
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 400;
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/image.jpg");
  background-size: cover;
  background-repeat: none;
}

.wrapper {
  position: relative;
  left: 50%;
  width: var(--wrapper);
  height: 800px;
  transform: translate(-50%, 0);
}

.container {
  position: relative;
  top: 50%;
  left: 50%;
  width: 80%;
  height: 75%;
  background-color: var(--white);
  transform: translate(-50%, -50%);
}
.container .left {
  float: left;
  width: 37.6%;
  height: 100%;
  border: 1px solid var(--light);
  background-color: var(--white);
}
.container .left .top {
  position: relative;
  width: 100%;
  height: 96px;
  padding: 29px;
}
.container .left .top:after {
  position: absolute;
  bottom: 0;
  left: 50%;
  display: block;
  width: 80%;
  height: 1px;
  content: "";
  background-color: var(--light);
  transform: translate(-50%, 0);
}
.container .left input {
  float: left;
  width: 188px;
  height: 42px;
  padding: 0 15px;
  border: 1px solid var(--light);
  background-color: #eceff1;
  border-radius: 21px;
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 400;
}
.container .left input:focus {
  outline: none;
}
.container .left a.search {
  display: block;
  float: left;
  width: 42px;
  height: 42px;
  margin-left: 10px;
  border: 1px solid var(--light);
  background-color: var(--blue);
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/name-type.png");
  background-repeat: no-repeat;
  background-position: top 12px left 14px;
  border-radius: 50%;
}
.container .left .people {
  margin-left: -1px;
  border-right: 1px solid var(--light);
  border-left: 1px solid var(--light);
  width: calc(100% + 2px);
}
.container .left .people .person {
  position: relative;
  width: 100%;
  padding: 12px 10% 16px;
  cursor: pointer;
  background-color: var(--white);
}
.container .left .people .person:after {
  position: absolute;
  bottom: 0;
  left: 50%;
  display: block;
  width: 80%;
  height: 1px;
  content: "";
  background-color: var(--light);
  transform: translate(-50%, 0);
}
.container .left .people .person img {
  float: left;
  width: 40px;
  height: 40px;
  margin-right: 12px;
  border-radius: 50%;
  -o-object-fit: cover;
     object-fit: cover;
}
.container .left .people .person .name {
  font-size: 14px;
  line-height: 22px;
  color: var(--dark);
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 600;
}
.container .left .people .person .time {
  font-size: 14px;
  position: absolute;
  top: 16px;
  right: 10%;
  padding: 0 0 5px 5px;
  color: var(--grey);
  background-color: var(--white);
}
.container .left .people .person .preview {
  font-size: 14px;
  display: inline-block;
  overflow: hidden !important;
  width: 70%;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: var(--grey);
}
.container .left .people .person.active, .container .left .people .person:hover {
  margin-top: -1px;
  margin-left: -1px;
  padding-top: 13px;
  border: 0;
  background-color: var(--blue);
  width: calc(100% + 2px);
  padding-left: calc(10% + 1px);
}
.container .left .people .person.active span, .container .left .people .person:hover span {
  color: var(--white);
  background: transparent;
}
.container .left .people .person.active:after, .container .left .people .person:hover:after {
  display: none;
}
.container .right {
  position: relative;
  float: left;
  width: 61.4%;
  height: 100%;
}
.container .right .top {
  width: 100%;
  height: 47px;
  padding: 15px 29px;
  background-color: #eceff1;
}
.container .right .top span {
  font-size: 15px;
  color: var(--grey);
}
.container .right .top span .name {
  color: var(--dark);
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 600;
}
.container .right .chat {
  position: relative;
  display: none;
  overflow: hidden;
  padding: 0 35px 92px;
  border-width: 1px 1px 1px 0;
  border-style: solid;
  border-color: var(--light);
  height: calc(100% - 48px);
  justify-content: flex-end;
  flex-direction: column;
}
.container .right .chat.active-chat {
  display: block;
  display: flex;
}
.container .right .chat.active-chat .bubble {
  transition-timing-function: cubic-bezier(0.4, -0.04, 1, 1);
}
.container .right .chat.active-chat .bubble:nth-of-type(1) {
  -webkit-animation-duration: 0.15s;
          animation-duration: 0.15s;
}
.container .right .chat.active-chat .bubble:nth-of-type(2) {
  -webkit-animation-duration: 0.3s;
          animation-duration: 0.3s;
}
.container .right .chat.active-chat .bubble:nth-of-type(3) {
  -webkit-animation-duration: 0.45s;
          animation-duration: 0.45s;
}
.container .right .chat.active-chat .bubble:nth-of-type(4) {
  -webkit-animation-duration: 0.6s;
          animation-duration: 0.6s;
}
.container .right .chat.active-chat .bubble:nth-of-type(5) {
  -webkit-animation-duration: 0.75s;
          animation-duration: 0.75s;
}
.container .right .chat.active-chat .bubble:nth-of-type(6) {
  -webkit-animation-duration: 0.9s;
          animation-duration: 0.9s;
}
.container .right .chat.active-chat .bubble:nth-of-type(7) {
  -webkit-animation-duration: 1.05s;
          animation-duration: 1.05s;
}
.container .right .chat.active-chat .bubble:nth-of-type(8) {
  -webkit-animation-duration: 1.2s;
          animation-duration: 1.2s;
}
.container .right .chat.active-chat .bubble:nth-of-type(9) {
  -webkit-animation-duration: 1.35s;
          animation-duration: 1.35s;
}
.container .right .chat.active-chat .bubble:nth-of-type(10) {
  -webkit-animation-duration: 1.5s;
          animation-duration: 1.5s;
}
.container .right .write {
  position: absolute;
  bottom: 29px;
  left: 30px;
  height: 42px;
  padding-left: 8px;
  border: 1px solid var(--light);
  background-color: #eceff1;
  width: calc(100% - 58px);
  border-radius: 5px;
}
.container .right .write input {
  font-size: 16px;
  float: left;
  width: 347px;
  height: 40px;
  padding: 0 10px;
  color: var(--dark);
  border: 0;
  outline: none;
  background-color: #eceff1;
  font-family: "Source Sans Pro", sans-serif;
  font-weight: 400;
}
.container .right .write .write-link.attach:before {
  display: inline-block;
  float: left;
  width: 20px;
  height: 42px;
  content: "";
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/attachment.png");
  background-repeat: no-repeat;
  background-position: center;
}
.container .right .write .write-link.smiley:before {
  display: inline-block;
  float: left;
  width: 20px;
  height: 42px;
  content: "";
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/smiley.png");
  background-repeat: no-repeat;
  background-position: center;
}
.container .right .write .write-link.send:before {
  display: inline-block;
  float: left;
  width: 20px;
  height: 42px;
  margin-left: 11px;
  content: "";
  background-image: url("https://s3-us-west-2.amazonaws.com/s.cdpn.io/382994/send.png");
  background-repeat: no-repeat;
  background-position: center;
}
.container .right .bubble {
  font-size: 16px;
  position: relative;
  display: inline-block;
  clear: both;
  margin-bottom: 8px;
  padding: 13px 14px;
  vertical-align: top;
  border-radius: 5px;
}
.container .right .bubble:before {
  position: absolute;
  top: 19px;
  display: block;
  width: 8px;
  height: 6px;
  content: " ";
  transform: rotate(29deg) skew(-35deg);
}
.container .right .bubble.you {
  float: left;
  color: var(--white);
  background-color: var(--blue);
  align-self: flex-start;
  -webkit-animation-name: slideFromLeft;
          animation-name: slideFromLeft;
}
.container .right .bubble.you:before {
  left: -3px;
  background-color: var(--blue);
}
.container .right .bubble.me {
  float: right;
  color: var(--dark);
  background-color: #eceff1;
  align-self: flex-end;
  -webkit-animation-name: slideFromRight;
          animation-name: slideFromRight;
}
.container .right .bubble.me:before {
  right: -3px;
  background-color: #eceff1;
}
.container .right .conversation-start {
  position: relative;
  width: 100%;
  margin-bottom: 27px;
  text-align: center;
}
.container .right .conversation-start span {
  font-size: 14px;
  display: inline-block;
  color: var(--grey);
}
.container .right .conversation-start span:before, .container .right .conversation-start span:after {
  position: absolute;
  top: 10px;
  display: inline-block;
  width: 30%;
  height: 1px;
  content: "";
  background-color: var(--light);
}
.container .right .conversation-start span:before {
  left: 0;
}
.container .right .conversation-start span:after {
  right: 0;
}

@keyframes slideFromLeft {
  0% {
    margin-left: -200px;
    opacity: 0;
  }
  100% {
    margin-left: 0;
    opacity: 1;
  }
}
@-webkit-keyframes slideFromLeft {
  0% {
    margin-left: -200px;
    opacity: 0;
  }
  100% {
    margin-left: 0;
    opacity: 1;
  }
}
@keyframes slideFromRight {
  0% {
    margin-right: -200px;
    opacity: 0;
  }
  100% {
    margin-right: 0;
    opacity: 1;
  }
}
@-webkit-keyframes slideFromRight {
  0% {
    margin-right: -200px;
    opacity: 0;
  }
  100% {
    margin-right: 0;
    opacity: 1;
  }
}

4. Finally, add the following JavaScript function between <script> tag just before closing the body element to activate the basic interaction of the chat.

document.querySelector('.chat[data-chat=person2]').classList.add('active-chat');
document.querySelector('.person[data-chat=person2]').classList.add('active');

let friends = {
  list: document.querySelector('ul.people'),
  all: document.querySelectorAll('.left .person'),
  name: '' },

chat = {
  container: document.querySelector('.container .right'),
  current: null,
  person: null,
  name: document.querySelector('.container .right .top .name') };


friends.all.forEach(f => {
  f.addEventListener('mousedown', () => {
    f.classList.contains('active') || setAciveChat(f);
  });
});

function setAciveChat(f) {
  friends.list.querySelector('.active').classList.remove('active');
  f.classList.add('active');
  chat.current = chat.container.querySelector('.active-chat');
  chat.person = f.getAttribute('data-chat');
  chat.current.classList.remove('active-chat');
  chat.container.querySelector('[data-chat="' + chat.person + '"]').classList.add('active-chat');
  friends.name = f.querySelector('.name').innerText;
  chat.name.innerHTML = friends.name;
}

That’s all! hopefully, you have successfully integrated this Simple HTML & CSS Messaging UI into your web/app project. If you have any questions or suggestions, feel free to comment below.

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