CSS transparent down triangle using only after

Question

I need to create a page using CSS triangle. My concern is that I can only use :after.

Image

HTML:

<div class="logo">
  <!--<div class="down"></div>-->
</div>

CSS:

.logo {
  background-image: url("https://cdn0.iconfinder.com/data/icons/small-n-
  flat/24/678110-sign-info-128.png");
  width:124px;
  height: 131px;
  float: left;
  margin-left: 290px;
  margin-top: 30px;
  margin-bottom: 93px;
  z-index: 10 !important;
  position: relative;
  /*margin-right: 160px;*/
}

.logo::after {
  content: '';
  border-left: 80px solid transparent;
  border-right: 80px solid transparent;
  border-top: 80px solid white;
  position: absolute;
  width: 0;
  height: 0;
  top: 90px;
  left: -15px;
  /*top: 120px;
  left: 275px;*/
  clear: both;
  /*transform-origin: 0 100%;        
  transform: rotate(45deg);*/
  /*margin-top: 90px;
  margin-left: 0px;*/
  z-index: 0 !important;
}

I want logo should be display above the triangle.

This seems to be a duplicate of a question you posted a couple of days ago, I suggest you update the original question with the new information and delete this one. If you do this I should be able to come up with a solution to your problem. — Hidden Hobbes, Apr 28 '17 at 10:20

SiddP · Accepted Answer · 2017-04-28T10:35:34.667

0

Thats because z-index is applied to logo class both the times which is the same class you need to remove z-index from .logo and add -ve z-index to .logo::after.

.logo {
background-image: url("https://cdn0.iconfinder.com/data/icons/small-n-flat/24/678110-sign-info-128.png");
width:124px;
height: 131px;
float: left;
margin-left: 290px;
margin-top: 30px;
margin-bottom: 93px;
position: relative;
/*margin-right: 160px;*/
 }
 .logo::after {
content: '';
 border-left: 80px solid transparent;
border-right: 80px solid transparent;
border-top: 80px solid white;
position: absolute;
width: 0;
height: 0;
top: 90px;
left: -15px;
/*top: 120px;
left: 275px;*/
clear: both;
 /*transform-origin: 0 100%;        
transform: rotate(45deg);*/
/*margin-top: 90px;
margin-left: 0px;*/
z-index: -1;
 }

Here is a working link : https://jsfiddle.net/qk5u45Lv/

edited Apr 28 '17 at 10:35

answered Apr 28 '17 at 10:33

SiddP

1,603
2
14
36

1

I was about to post the same. For more information, you can check this post : http://stackoverflow.com/questions/3032856/is-it-possible-to-set-the-stacking-order-of-pseudo-elements-below-their-parent-e – Amaury Hanser Apr 28 '17 at 10:35
Unfortunately this would place the triangle beneath everything. I've added a container with a background to demonstrate: https://jsfiddle.net/qk5u45Lv/1/ – Adam Nierzad Apr 28 '17 at 10:38
Then you can add the ``::after`` to the container ? – Amaury Hanser Apr 28 '17 at 11:09
@anierzad moreover I found the container background is overshadowing the triangle – SiddP Apr 28 '17 at 11:12
This is really helpful.Thank you. – John. Developer Apr 28 '17 at 11:28
Please up vote my question if this is relevant. – John. Developer Apr 28 '17 at 11:30
@SiddP it's covering the triangle because you've given it a negative z-index. Every other element on the page will have at least a z-index of 0 and will appear on top of the triangle. – Adam Nierzad Apr 28 '17 at 12:04

score 0 · Answer 2 · edited Apr 29 '17 at 11:07

One more alternative:

HTML:

<div class="logo"><span>i</span></div>

Apply this css:

.logo {
  background: #3498db none repeat scroll 0 0;
  border-radius: 100%;
  box-shadow: 0 5px 0 #2980b9;
  height: 100px;
  width: 100px;
  text-align:center;
  position:relative;
}
.logo > span {
  color: #fff;
  font-family: -moz-fixed;
  font-size: 82px;
  font-weight: 600;
  text-align: center;
  text-shadow: 1px 3px 1px #000;
}

.logo::after {
  border-left: 50px solid transparent;
  border-right: 50px solid transparent;
  border-top: 50px solid #f00;
  bottom: -45px;
  content: "";
  height: 0;
  left: 0;
  position: absolute;
  width: 0;
  z-index: -1;
}

OUPUT:

For more go this link

Hope this will help you!!!

Let me know if there is any query.

CSS transparent down triangle using only after

2 Answers2