how create triangle using css

Question

Please any one help me how create below diagram using css.

    ________/\_______
   |                |
   |                |
   |                |
   |________________|

Please help me how to it will done using css.and only div should be use.

After making some [minor changes](http://jsfiddle.net/4ZeCz/2820/). Now, all you need to do is figure out how to align it on the top. — Weafs.py, Jan 09 '15 at 04:45
Reference: [CSS Shapes](http://css-tricks.com/examples/ShapesOfCSS/) — xkeshav, Jan 09 '15 at 04:49
Hi @leftside, How decrease border width for above triangle, i need one pixel, can please help me ho to do it — Siva, Jan 09 '15 at 04:58
Here is another one without any CSS ----> [Fiddle](http://jsfiddle.net/4ZeCz/2828/). — Weafs.py, Jan 09 '15 at 05:08

score 2 · Accepted Answer · answered Jan 09 '15 at 05:06

See here: http://jsfiddle.net/alexwcoleman/6ue8vvba/

.box {
    position: relative;
    border: 1px solid #000;
    height:100px;
    width:300px;
    margin-top:100px;
    background:#fff;
}
.box:after, .box:before {
    bottom: 100%;
    left: 50%;
    border: solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}

.box:after {
    border-color: rgba(136, 183, 213, 0);
    border-bottom-color: #fff;
    border-width: 30px;
    margin-left: -30px;
}
.box:before {
    border-color: rgba(194, 225, 245, 0);
    border-bottom-color: #000;
    border-width: 31px;
    margin-left: -31px;
}

score 1 · Answer 2 · answered Jan 09 '15 at 05:00

This code use for create triangle:

HTML:
<div id="talkbubble"></div>

CSS:
#talkbubble {
   width: 120px;
   height: 80px;
   background: red;
   position: relative;
    margin-top: 50px;
}
#talkbubble:before {
   content: "";
position: absolute;
right: 43%;
bottom: 100%;
width: 0;
height: 0;
border-left: 13px solid transparent;
border-bottom: 25px solid red;
border-right: 11px solid transparent;
}

SEE DEMO HERE:DEMO

how create triangle using css

2 Answers2