Talk Bubble

http://stackoverflow.com/q/8866736/918414

by Ganesh Salunkhe

HTML

<div class="chat">
<div class="bubble me">Hello there!</div>
<div class="bubble you">Hi. I'm an expandeable chat box with box shadow. How are you? I expand horizontally and vertically, as you can see here.</div>
<div class="bubble me">Awesome.</div>
</div>

            
            
                        
            
            
            
            
            
            
            
            
            
            




    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
























































































































    
<script>

/* by: thinkingstiff.com
license: http://creativecommons.org/licenses/by-nc-sa/3.0/us/ */

var headerUri = 'http://stackoverflow.com/q/8866736/918414',
    headerCaption = 'CSS Speech Bubble with Box Shadow';
    
document.body.insertAdjacentHTML( 
    'afterBegin',
      '<a href="' + headerUri + '" '
    + 'target="_top" '
    + 'onmouseover="this.style.opacity=\'.95\'" '
    + 'onmouseout="this.style.opacity=\'1\'" '
...

CSS

.chat {
    width: 400px;
}

.bubble{
    background-color: #F2F2F2;
    border-radius: 5px;
    box-shadow: 0 0 6px #B2B2B2;
    display: inline-block;
    padding: 10px 18px;
    position: relative;
    vertical-align: top;
}

.bubble::before {
    background-color: #F2F2F2;
    content: "\00a0";
    display: block;
    height: 16px;
    position: absolute;
    top: 11px;
    transform:             rotate( 29deg ) skew( -35deg );
        -moz-transform:    rotate( 29deg ) skew( -35deg );
        -ms-transform:     rotate( 29deg ) skew( -35deg );
        -o-transform:      rotate( 29deg ) skew( -35deg );
        -webkit-transform: rotate( 29deg ) skew( -35deg );
    width:  20px;
}

.me {
    float: left;   
    margin: 5px 45px 5px 20px;         
}

.me::before {
    box-shadow: -2px 2px 2px 0 rgba( 178, 178, 178, .4 );
    left: -9px;           
}

.you {
    float: right;    
    margin: 5px 20px 5px 45px;         
}

.you::before {
    box-shadow: 2px -2px 2px 0 rgba( 178, 178, 178, .4 );
    right: -9px;    
}