CSS triangle :before element

Question

I\'m using bootstrap, trying to make a div have a CSS triangle before it.

http://jsfiddle.net/B2XvZ/11/

Here is my non-working code:

.d:bef         


        

Answer 1

You need to specify the content property.

For positioning, add position:relative to the parent, and then absolutely position the arrow -15px to the left.

jsFiddle example

.d {
    position:relative;
}

.d:before {
    content:"\A";
    border-style: solid;
    border-width: 10px 15px 10px 0;
    border-color: transparent #dd4397 transparent transparent;
    position: absolute;
    left: -15px;
}

Answer 2

a:after {
content: '';
width: 0px;
height: 0px;
border-style: solid;
border-width: 15px 15px 0px 15px;
border-color: #fff transparent transparent transparent;
display: inline-block;
vertical-align: middle;
position: absolute;
bottom: -13px;
left: 0;
right: 0;
margin: 0 auto;

}

Answer 3

You need content property and some other

.d:before {
  content: '';
  width: 0px;
  height: 0px;
  border-style: solid;
  border-width: 10px 15px 10px 0;
  border-color: transparent #dd4397 transparent transparent;  
  display: inline-block;
  vertical-align: middle;
  margin-right: 5px;
}