Pure CSS Speech Bubble with Border

Pure CSS Speech Bubble with Border

You're pretty close. You just need to use both a :before and an :after to layer another triangular border.

Here's a jsfiddle: http://jsfiddle.net/rgthree/DWxf7/ and the CSS used:

.speech-bubble {
    position:relative;
    width: 320px;
    padding: 10px;
    margin: 3em;
    background-color:#FFF;
    color: #666;
    font: normal 12px "Segoe UI", Arial, Sans-serif;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    border-radius: 10px;
    border: 10px solid rgba(0,0,0,0.095);
}
.speech-bubble p {
    font-size: 1.25em;
}

.speech-bubble:before,
.speech-bubble:after {
    content: "\0020";
    display:block;
    position:absolute;
    top:-20px;  /* Offset top the height of the pointer's border-width */
    left:20px;
    z-index:2;
    width: 0;
    height: 0;
    overflow:hidden;
    border: solid 20px transparent;
    border-top: 0;
    border-bottom-color:#FFF;
}
.speech-bubble:before {
    top:-30px; /* Offset of pointer border-width + bubble border-width */
    z-index:1;
    border-bottom-color:rgba(0,0,0,0.095);
}

CSS speech bubble border issue

This is how I usually do it: DEMO

Basically you need another slightly larger :before or :after element positioned behind the first.

.bubble:before {
    border-right: 25px solid hsla(0,0%,0%,.1);
    bottom: -28px;
    right: 22px;
    z-index: 1;
}
.bubble:before {
    border-right: 27px solid #DD4814;
    border-bottom: 27px solid transparent;
    bottom: -29px;
    right: 23px;
    z-index: 0;
}

apply 1px borders to CSS speech bubbles?

Have a look at this Jsfiddle.

These are the changes I made:

.sb {
  border: 1px solid #000;
}

.sb::before {
  height: 12px;
  top: 12px;
  border-left: 1px solid #000;
  border-bottom: 1px solid #000;
}

.sb-0 {
  background-color: #ffffff;
  float: left;
  margin: 5px 17% 5px 20px;
}

.sb-0::before {
  left: -9px;
}

EDIT

Updated Jsfiddle to contain the bubble on the right side also.

Pure CSS speech bubble with triangles: Firefox renders ugly 1px border for no reason?

You need to add

border-style: outset;

Update
To make it more visible on FF

border-style: solid outset;

To your

.bubble:before, .bubble:after {

(Updated JSFiddle)
http://jsfiddle.net/bFFrK/1

How to create speech-bubble border with CSS3

Like this: http://nicolasgallagher.com/pure-css-speech-bubbles/

.triangle-isosceles {
   position:relative;
   padding:15px;
   margin:1em 0 3em;
   color:#000;
   background:#f3961c;

   /* css3 */
   -moz-border-radius:10px;
   -webkit-border-radius:10px;
   border-radius:10px;
   background:-moz-linear-gradient(top, #f9d835, #f3961c);
   background:linear-gradient(top, #f9d835, #f3961c);
}

/* creates triangle */
.triangle-isosceles:after {
   content:"";
   display:block; /* reduce the damage in FF3.0 */
   position:absolute;
   bottom:-15px;
   left:50px;
   width:0;
   border-width:15px 15px 0;
   border-style:solid;
   border-color:#f3961c transparent;
}

CSS Speech Bubble with Box Shadow

Instead of using a triangle hack, you can just rotate a div using transform and get a real box-shadow. Since you only want the shadow on one side of the div (the visible triangle side), you have to make the blur smaller and lower the opacity.

Demo: http://jsfiddle.net/ThinkingStiff/mek5Z/

HTML:

<div class="bubble"></div>

CSS:

.bubble{
    background-color: #F2F2F2;
    border-radius: 5px;
    box-shadow: 0px 0px 6px #B2B2B2;
    height: 200px;
    margin: 20px;
    width:  275px;
}

.bubble::after {
    background-color: #F2F2F2;
    box-shadow: -2px 2px 2px 0 rgba( 178, 178, 178, .4 );
    content: "\00a0";
    display: block;
    height: 20px;
    left: -10px;
    position: relative;
    top: 20px;
    transform:             rotate( 45deg );
        -moz-transform:    rotate( 45deg );
        -ms-transform:     rotate( 45deg );
        -o-transform:      rotate( 45deg );
        -webkit-transform: rotate( 45deg );
    width:  20px;
}

Output:

how to add border to CSS only speech bubble

You can make a slightly larger brown arrow with the :after psudo-element, and position it behind the smaller green arrow (made with :before), and down 2px to create a border effect.

here's the fiddle: http://jsfiddle.net/rhGCb/

And the css:

.bubble {
  border:2px solid #493A34;
height: 30px;
width: 574px;
background-color: #9FC175;
background-image: -webkit-linear-gradient(top, hsla(0,0%,100%,.5), hsla(0,0%,100%,0));
background-image: -moz-linear-gradient(top, hsla(0,0%,100%,.5), hsla(0,0%,100%,0));
background-image: -ms-linear-gradient(top, hsla(0,0%,100%,.5), hsla(0,0%,100%,0));
background-image: -o-linear-gradient(top, hsla(0,0%,100%,.5), hsla(0,0%,100%,0));
background-image: linear-gradient(top, hsla(0,0%,100%,.5), hsla(0,0%,100%,0));
border-radius: 5px;
box-shadow: inset 0 1px 1px hsla(0,0%,100%,.5),3px 3px 0 hsla(0,0%,0%,.1);
text-shadow: 0 1px 1px hsla(0,0%,100%,.5);
position: absolute;
}

.bubble:before {
border-bottom: 25px solid transparent;
border-right: 25px solid #493A34;
bottom: -27px;
content: '';
position: absolute;
right: 23px;

}

  .bubble:after {
border-bottom: 25px solid transparent;
border-right: 25px solid #9FC175;
bottom: -23px;
content: '';
position: absolute;
right: 25px;
}

create specific chat bubble shape with CSS

Here's a example based on Pure CSS speech bubbles by Nicolas Gallagher.

It uses overlapping pseudo-elements with border-radius to create the bubble's pointy curved stem. This may not be a pixel-perfect match to your mockup, but you can modify the values to improve the shape as desired.

body {
  background: lightgray;
  margin: 0;
}

.speech-bubble {
  position: relative;
  padding: 50px;
  margin: 1em 20px;
  text-align: center;
  color: black;
  background: white;
  border-radius: 30px;
}

.speech-bubble:before {
  content: "";
  position: absolute;
  z-index:-1;
  left: -22px;
  top: 0;
  width: 40px;
  border-bottom: 35px solid white;
  border-top-right-radius: 25px;
}

.speech-bubble:after {
  content: "";
  position: absolute;
  z-index:-1;
  left: -28px;
  top: -3px;
  height: 38px;
  width: 28px;
  background: lightgray;
  border-top-right-radius: 20px;
}

<div class="speech-bubble">Hello, world.</div>

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