Need an arrow on right side of the box - html

Question

I need an arrow on the right side of the div but this one is not working.
Here is the fiddle:
https://jsfiddle.net/azb5m3r2/2/
The arrow correctly appears on the left side of the div, but I want it to appear on the right side (opposite side).
body {
font-family: Helvetica;
font-size: 13px;
}
div.callout {
height: 20px;
width: 130px;
/*float: left;*/
z-index: 1;
}
div.callout {
background-color: #444;
background-image: -moz-linear-gradient(top, #444, #444);
position: relative;
color: #ccc;
padding: 20px;
border-radius: 3px;
box-shadow: 0px 0px 20px #999;
//margin: 25px;
min-height: 20px;
border: 1px solid #333;
text-shadow: 0 0 1px #000;
/*box-shadow: 0 1px 0 rgba(255, 255, 255, 0.2) inset;*/
}
.callout::before {
content: "";
width: 0px;
height: 0px;
border: 0.8em solid transparent;
position: absolute;
}
.callout.top::before {
left: 0%;
bottom: -20px;
border-top: 11px solid #444;
}
.callout.bottom::before {
left: 45%;
top: -20px;
border-bottom: 10px solid #444;
}
.callout.right::before {
left: -20px;
top: 40%;
border-right: 10px solid #444;
}
/* .callout.left::after {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}
*/
.callout.left:after {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}
<div class="callout left">test</div>
This works on the left hand side
<div class="callout right">test</div>

Answer 1

Instead of this:
.callout.left::after {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}
Use this:
.callout.left::before {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}
And, optionally, for a perfectly centered arrow, use this:
.callout.left::before {
right: -20px;
top: 50%;
transform: translateY(-50%);
border-left: 10px solid #444;
}
revised fiddle
For an explanation of the centering technique, see this post: Element will not stay centered, especially when re-sizing screen

Answer 2

The callout.left must be ::before , not ::after or :after, Same as you give the .callout::before style.
The code should like this
.callout.left::before {
right: -20px;
top: 40%;
border-left: 10px solid #444;
}

Answer 3

I think you may try something like this:
.callout {
position: relative;
top: 0;
left: 0;
display: block;
padding: 10px;
}
.callout.right {
margin-left: 10px;
}
.callout.right::before {
position: absolute;
top: 50%;
left: 0;
width: 0;
height: 0;
margin-top: -10px;
border-top: 10px solid transparent;
border-bottom: 10px solid transparent;
border-right: 10px solid #a8c3e5;
content: '';
}
.callout.right::after {
position: absolute;
top: 50%;
left: 2px;
width: 0;
height: 0;
margin-top: -10px;
border-top: 10px solid transparent;
border-bottom: 10px solid transparent;
border-right: 10px solid #f9f9f9;
content: '';
}
.callout-inner {
padding: 2px;
width: 240px;
overflow: hidden;
background: black;
background: #a8c3e5;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
}
.callout-content {
padding: 14px;
margin: 0;
background-color: #f9f9f9;
color: #39569A;
-webkit-border-radius: 2px;
-moz-border-radius: 2px;
border-radius: 2px;
-webkit-background-clip: padding-box;
-moz-background-clip: padding-box;
background-clip: padding-box;
}
<div class="callout right">
<div class="callout-inner">
<div class="callout-content">
Lorem ipsum dolor sit amet, consectetur adipiscing elit.
</div>
</div>
</div>

Answer 4

#right {
background-color: #333;
height: 60px;
position: relative;
width: 150px;
border-radius:5px;
float:right;
font-family:Helvetica;
color:#FFF;
text-align:center;
line-height:55px;
}
#right:after {
content: ' ';
height: 0;
position: absolute;
width: 0;
border: 10px solid transparent;
border-top-color: #333;
top: 100%;
left: 50%;
margin-left: -10px;
}
****
<div id="right">test</div>
https://jsfiddle.net/razia/peeq2aam/