Container with rounded triangle/arrow in CSS - css

I'm trying to give the background of a container a rounded arrow feel. I want the arrow to always be stretched to full width and able to adjust height on the fly (if necessary, I can adjust height with javascript).
Here's an example:
Is this possible using CSS?
If not, how should I accomplish it -- SVG background image?

You can use pseudo elements to achieve this shape.
FIDDLE
div {
width: 200px;
height: 100px;
overflow: hidden;
position: relative;
display: inline-block;
padding: 35px 100px;
}
div:before {
content: '';
width: 200px;
height: 200px;
background: #ccc;
border-radius: 20px;
position: absolute;
transform: rotate(-56deg) skewY(25deg);
}
div:after {
content: '';
width: 334px;
left: 33px;
top: 134px;
z-index: 1;
height: 40px;
background: #ccc;
position: absolute;
}
<div></div>

Related

Border-radius and overflow hidden with child background

I've got a problem with border-radius on wrapper that contains an overflow hidden.
I use a before pseudo element (pink background) to fill the wrapper's background. The wrapper has already a background (blue).
#wrapper {
background: blue;
border: 2px solid pink;
border-radius: 12px;
height: 90px;
overflow: hidden;
position: relative;
width: 300px;
}
#wrapper::before {
background: pink;
content: '';
display: block;
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 50%;
}
<div id="wrapper"></div>
With this example, we can see an unwanted blue pixel on the top and bottom left corner.
The pseudo element must be in position absolute to apply animation. I removed the animation for the example.
How can I fix this?
A fix is here. Apply overflow:hidden an width:300px to the outer div #container.
#container {
width: 300px;
overflow: hidden;
border-radius: 12px;
}
#wrapper {
height: 90px;
background: blue;
border-radius: 12px;
position: relative;
box-sizing: border-box;
border: 2px solid pink;
}
#wrapper::before {
background: pink;
content: '';
display: block;
height: 100%;
right: -30px;
position: absolute;
top: 0;
width: 30px;
border-radius: 50%;
transition: transform 0.3s;
}
#wrapper:hover::before {
transform: scale3D(10, 10, 1);
}
<div id="container">
<div id="wrapper"></div>
</div>
You found a really interesting rendering issue. My idea to solve it, is switch the colors and logic a little:
#wrapper {
background: pink;
border: 2px solid pink;
border-radius: 12px;
height: 90px;
overflow: hidden;
position: relative;
width: 300px;
}
#wrapper::before {
background: blue;
content: '';
display: block;
height: 100%;
right: 0;
position: absolute;
top: 0;
width: 50%;
}
<div id="wrapper"></div>

How to position ::after background image into the center of the div?

I'm trying to position the logo to the center of the header div with half of the logo overflowing to the bottom div. I have the following but I can't figure out how to dynamically set it to be centered. Because relying on top and left values seems like it's going to be inconsistent.
.header {
position: relative;
height: 200px;
background-color: #000;
&:after {
z-index: 2;
content: ' ';
position: absolute;
left: 27%;
top: 60%;
width: 200px;
height: 200px;
background-image: url('images/logo.png');
}
}
You can use left: 50% with negative margin-left (half of logo width).
.header {
background-color: #000;
position: relative;
height: 200px;
}
.header:after {
margin-left: -100px;
position: absolute;
background: #f00;
bottom: -100px;
height: 200px;
width: 200px;
content: ' ';
z-index: 2;
left: 50%;
}
<div class="header"></div>
May I suggest flexbox?
Centering logic will be handled for you, then you just need to make sure the background image is positioned correctly.
.header {
background-color: #000;
height: 200px;
position: relative;
&:after {
content: '';
height: 100%;
display: flex;
background: url('http://i.imgur.com/9My4X1v.jpg');
background-size: auto 100%;
background-repeat: no-repeat;
background-position: center;
}
}
https://jsfiddle.net/JackHasaKeyboard/9azLwx22/10/

Coloured round border around pseudo content with image sprite?

Im using an image sprite with transparency which im applying to pseudo content. I need a coloured rounder border around the image.
This is what I have so far:
http://codepen.io/anon/pen/bpmGaz
<div class="icon"></div>
.icon:after {
content: "";
display: inline-block;
background-color: gold;
background-image: url(http://orig00.deviantart.net/1110/f/2014/143/9/b/mega_man_hd_sprites__transparent_background__by_lunodevan-d7jgruq.png);
background-position: -129px -40px;
height: 100px;
width: 100px;
}
.icon {
margin: auto;
margin-top: 100px;
position: relative;
width: 100px;
}
.icon:before {
content: "";
display: inline-block;
background: gold;
position: absolute;
top: -50px;
left: -50px;
width: 200px;
height: 200px;
z-index: -1;
border-radius: 100%;
}
However I need it to look like this:
I can do this with additional pseudo content (see below) but the code is getting a bit messy. Is there a shorter way to do this?
http://codepen.io/anon/pen/VaEwQy
.icon:after {
content: "";
display: inline-block;
background-color: gold;
background-image: url(http://orig00.deviantart.net/1110/f/2014/143/9/b/mega_man_hd_sprites__transparent_background__by_lunodevan-d7jgruq.png);
background-position: -129px -40px;
height: 100px;
width: 100px;
}
.icon {
margin: auto;
margin-top: 100px;
position: relative;
width: 100px;
}
.icon:before {
content: "";
display: inline-block;
background: gold;
position: absolute;
top: -50px;
left: -50px;
width: 200px;
height: 200px;
z-index: -1;
border-radius: 100%;
}
I tried using the outline property however sadly it doesn't work cross browser with border-radius.
Adding this code to your pseudo-element seems to do the trick:
border: 50px solid gold;
border-radius: 100%;
http://codepen.io/anon/pen/aNRzmE

Positioning element in the middle of dynamically sized element

I have to put "Play" icon and text "Play" in the center of element that contains and its height and width depend of that image - they are changing depending of the user's screen.
I was trying to use it like this
a.thumbnail:hover:after
{
content: "Play";
width: 50px;
height: 20px;
display: inline-block;
position: absolute;
top:50%;
left: 50%;
background-color: #fff;
border: 1px solid red;
}
But actually the top left corner of the :before element is in the middle and looks displaced... can you suggest me better solution?
add this to the code
margin: -10px -25px; /** height/2 width/2 **/
or use translate the same way
div{
position: relative;
width: 200px;
height: 200px;
background: red;
margin: 20px auto
}
div:after{
content: '';
position: absolute;
width: 50px;
height: 20px;
z-index: 2;
top: 50%;
left: 50%;
background: green;
transform: translate( -50%, -50%)
}
<div><div/>

How to style a rectangular div with elliptical rounded sides?

How to style a rectangular div with elliptical rounded sides?
You can get an ellipse by setting border-radius 50%.
You can get two elements, one inside the other, with different sizes, and so get the 2 ellipses needed
.test {
position: absolute;
left: 40px;
top: 40px;
width: 200px;
height: 200px;
border-radius: 50%;
overflow: hidden;
}
.test:after {
content: "";
position: absolute;
left: -30%;
top: 10%;
width: 160%;
height: 80%;
background-color: lightblue;
border-radius: 50%;
}
In this case, using an pseudo element , and so, only one div is needed
demo
Have you checked out this website? Try this:
div
{
border:2px solid;
border-radius:25px;
}

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