Make a traingle overlay using linear gradient css - html

I'm trying to add a triangle shaped linear-gradient to my css.
https://ibb.co/MZfbY0F
I have implemented this on jsFiddle. But in chrome or mozilla it shows like this -
https://ibb.co/FxR1pGQ
body {
height: 100vh;
margin: 0;
background:
linear-gradient(to top left, transparent 50%, rgba(255, 0, 0, 0.5) 51%) 0 0%/35% no-repeat,
url(https://lorempixel.com/1000/1000/) center/cover;
}
div {
height:200px;
text-align:left;
color:#fff;
padding:10px;
font-size:25px;
}
<div>
<p>Some content</p>
</div>

You should add browser prefixes for linear background
body {
height: 100vh;
margin: 0;
background: -moz-linear-gradient(to top left, transparent 50%, rgba(255,0,0,0.5) 51%) 0 0%/35% no-repeat,
url(https://lorempixel.com/1000/1000/) center/cover; /* FF3.6-15 */
background: -webkit-linear-gradient(to top left, transparent 50%,rgba(255,0,0,0.5) 51%) 0 0%/35% no-repeat,
url(https://lorempixel.com/1000/1000/) center/cover; /* Chrome10-25,Safari5.1-6 */
background: linear-gradient(to top left, transparent 50%,rgba(255,0,0,0.5) 51%) 0 0%/35% no-repeat,
url(https://lorempixel.com/1000/1000/) center/cover; /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#00000000', endColorstr='#80ff0000',GradientType=0 ) 0 0%/35% no-repeat,
url(https://lorempixel.com/1000/1000/) center/cover; /* IE6-9 */
}
div {
height:200px;
text-align:left;
color:#fff;
padding:10px;
font-size:25px;
}
<div>
<p>Some content</p>
</div>

try this.
#triangle-topleft:after {
width: 0;
height: 0;
border-top: 100px solid red;
border-right: 100px solid transparent;
content: '';
position: absolute;
left: 0;
z-index: -1;
}
<div id="triangle-topleft">some Text</div>

Related

Unsure how to position image over gradient correctly

I am generating a gradient on the page. How can I overlay an image in the center of this ribbon? I need to center the image and I cant seem to figure out how to make this work. I am using bootstrap and the page is responsive. So it needs to stay together when the page gets smaller. Any help is appreciated!
Desired Result:
#ribbon-background {
background: #ed1c24; /* Old browsers */
background: -moz-linear-gradient(left, #ed1c24 0%, #600000 50%, #ed1c24 100%); /* FF3.6-15 */
background: -webkit-gradient(linear, left top, right top, color-stop(0%,#ed1c24), color-stop(50%,#600000), color-stop(100%,#ed1c24)); /* Chrome4-9,Safari4-5 */
background: -webkit-linear-gradient(left, #ed1c24 0%,#600000 50%,#ed1c24 100%); /* Chrome10-25,Safari5.1-6 */
background: -o-linear-gradient(left, #ed1c24 0%,#600000 50%,#ed1c24 100%); /* Opera 11.10-11.50 */
background: -ms-linear-gradient(left, #ed1c24 0%,#600000 50%,#ed1c24 100%); /* IE10 preview */
background: linear-gradient(to right, #ed1c24 0%,#600000 50%,#ed1c24 100%); /* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ed1c24', endColorstr='#ed1c24',GradientType=1 ); /* IE6-9 */
border-top: 3px solid #000;
border-bottom: 3px solid #000;
box-shadow: 0 7px 0 #FFF inset,
0 -7px 0 #FFF inset;
height: 65px;
margin: 0 auto;
width: 100%;
z-index: 99;
}
<div id="ribbon-background"></div>
One way to do that is to give the ribbon a position: relative; and add the follow style to a child <img>:
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
Demo:
#ribbon-background {
background: #ed1c24;
/* Old browsers */
background: -moz-linear-gradient(left, #ed1c24 0%, #600000 50%, #ed1c24 100%);
/* FF3.6-15 */
background: -webkit-gradient(linear, left top, right top, color-stop(0%, #ed1c24), color-stop(50%, #600000), color-stop(100%, #ed1c24));
/* Chrome4-9,Safari4-5 */
background: -webkit-linear-gradient(left, #ed1c24 0%, #600000 50%, #ed1c24 100%);
/* Chrome10-25,Safari5.1-6 */
background: -o-linear-gradient(left, #ed1c24 0%, #600000 50%, #ed1c24 100%);
/* Opera 11.10-11.50 */
background: -ms-linear-gradient(left, #ed1c24 0%, #600000 50%, #ed1c24 100%);
/* IE10 preview */
background: linear-gradient(to right, #ed1c24 0%, #600000 50%, #ed1c24 100%);
/* W3C, IE10+, FF16+, Chrome26+, Opera12+, Safari7+ */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ed1c24', endColorstr='#ed1c24', GradientType=1);
/* IE6-9 */
border-top: 3px solid #000;
border-bottom: 3px solid #000;
box-shadow: 0 7px 0 #FFF inset, 0 -7px 0 #FFF inset;
height: 65px;
margin: 0 auto;
width: 100%;
z-index: 99;
position: relative;
}
#ribbon-overlay-img {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
<div id="ribbon-background">
<img id="ribbon-overlay-img" src="http://www.iconsdb.com/icons/preview/orange/stackoverflow-4-xxl.png">
</div>

CSS color transition in triangles with linear gradient

I am working on a rectangular background which is divided into 2 triangles by a line from top left to bottom right, as shown in the pic.
What I want to achieve is color transition in each triangle:
In triangle ABD: pink becomes darker from left to right
In triangle ACD: blue becomes darker from left to right
Note: The width and height are not fixed to 600 and 250. I just use them for demo purpose.
HTML code:
<div class="background-wrapper">
<p class="float-left">A</p>
<p class="float-right">B</p>
<br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<p class="float-left">C</p>
<p class="float-right">D</p>
</div>
CSS code:
.background-wrapper {
position: relative;
width: 600px;
height: 250px;
color: #FFFFFF;
padding: 20px 50px 80px 50px;
background: linear-gradient(to left bottom, pink 50%, blue 50%);
}
.float-left {
float: left;
}
.float-right {
float: right;
}
Demo jsfiddle here
One posibility, that is cross-browser but that gives washed colors, is to overlay the triangles with a semitransparent gradient that is white on one side and black in the other.
This effect gets much better using blend modes, but the support is lower.
.test {
width: 400px;
height: 300px;
background-image: linear-gradient(to left, rgba(0,0,0,.5), rgba(0,0,0,0) 40%,
rgba(255,255,255,0) 60%, rgba(255,255,255,.5)),
linear-gradient(to top right, blue 50%, fuchsia 50%);
}
<div class="test"></div>
I modified your code quite a bit from the original. I added two new elements to act as the background. May not be the solution you're looking for but off the top of my head this is what works.
Fiddle
.background-wrapper {
position: relative;
width: 600px;
height: 250px;
color: #FFFFFF;
padding: 20px 50px 80px 50px;
overflow: hidden;
}
.triangle {
position: absolute;
top: -65%;
right: -30%;
width: 125%;
height: 125%;
transform: rotate(26.5deg);
background: linear-gradient(to right, pink, #f44274);
}
.triangle.bottom {
top: initial;
right: initial;
left: -30%;
bottom: -64.8%;
background: linear-gradient(to right, blue, navy);
}
<div class="background-wrapper">
<div class="triangle top"></div>
<div class="triangle bottom"></div>
</div>
You can use more colors after you define the linear-gradient position, so you can do stuff like:
background: linear-gradient(to left bottom, deeppink 0%, pink 50%, blue 50%,midnightblue 100%);
Check your updated fiddle
.background-wrapper {
position: relative;
width: 800px;
height: 450px;
background: #ffffff;
/* Old Browsers */background: -moz-linear-gradient(45deg, #ffffff 0%, #6176ff 49%, #ff80d9 50%, #ffffff 100%);
/* FF3.6+ */background: -webkit-gradient(left bottom, right top, color-stop(0%, #ffffff), color-stop(49%, #6176ff), color-stop(50%, #ff80d9), color-stop(100%, #ffffff));
/* Chrome, Safari4+ */background: -webkit-linear-gradient(45deg, #ffffff 0%, #6176ff 49%, #ff80d9 50%, #ffffff 100%);
/* Chrome10+,Safari5.1+ */background: -o-linear-gradient(45deg, #ffffff 0%, #6176ff 49%, #ff80d9 50%, #ffffff 100%);
/* Opera 11.10+ */background: -ms-linear-gradient(45deg, #ffffff 0%, #6176ff 49%, #ff80d9 50%, #ffffff 100%);
/* IE 10+ */background: linear-gradient(45deg, #ffffff 0%, #6176ff 49%, #ff80d9 50%, #ffffff 100%);
/* W3C */filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#ffffff', GradientType=1 );
/* IE6-9 fallback on horizontal gradient */
}
.float-left {
float: left;
}
.float-right {
float: right;
}
you can specify the angle in the gradient. Try the above code. it works with width and height.

Create a glossy light effect using CSS

I'm trying to create a light effect with CSS and HTML only. Just like this image
I don't know if it's possible. or how to do it.
Any help will be appreciated.
.circle {
border: 10px solid;
border-radius: 50%;
width: 200px;
height: 200px;
background-color: green;
}
<div class="circle"></div>
Here is my example
*,
*:before,
*:after {
box-sizing: border-box;
}
div {
width: 120px;
height: 120px;
border-radius: 60px;
background: linear-gradient(to bottom, #393939 0%, #151515 100%);
position: relative;
}
div:before {
content: '';
width: 106px;
height: 106px;
border-radius: 53px;
background: #19f000;
border: 1px solid black;
position: absolute;
left: 7px;
top: 7px;
}
div:after {
content: '';
width: 80px;
height: 60px;
border-radius: 50%;
background: linear-gradient(to bottom, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0) 100%);
position: absolute;
transform: rotate(-18deg);
left: 13px;
top: 9px;
}
<div></div>
JSfiddle Demo
You can use a second div for the highlight to try and provide a stronger 3D effect, freeing up the box-shadow to be used for the darker contouring on the edges.
.circle {
width: 164px;
height: 164px;
background-color: #19f000;
border-radius: 100%;
position: relative;
border: 10px solid #444444;
box-shadow: 0 0 15px 0 rgba(0,0,0,.8) inset;
transform: rotate(-20deg);
}
.highlight {
position: absolute;
top: 2px;
right: 0;
left: 0;
margin: auto;
width: 80%;
height: 64%;
opacity: .92;
border-radius: 100%;
/* gratuitous gradient compatibility - activate! */
background: -moz-linear-gradient(top, rgba(255,255,255,1) 0%, rgba(255,255,255,0) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(255,255,255,1)), color-stop(100%,rgba(255,255,255,0))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(255,255,255,1) 0%,rgba(255,255,255,0) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(255,255,255,1) 0%,rgba(255,255,255,0) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(255,255,255,1) 0%,rgba(255,255,255,0) 100%); /* IE10+ */
background: linear-gradient(to bottom, rgba(255,255,255,1) 0%,rgba(255,255,255,0) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#00ffffff',GradientType=0 ); /* IE6-9 */
}
<div class="circle">
<div class="highlight"></div>
</div>
You can do with the combination of radial gradient and a pseudo element for glossy effect.
The transition from white to green can be produced through radial-gradient. The #fff color stops at 5%.
The glossy effect finish is given using the opacity on the pseudo element and has a similar shape of the parent with white background and reduced width.
JSfiddle Demo
.circle::after {
background: white none repeat scroll 0 0;
border-radius: 50%;
content: " ";
display: block;
height: 100px;
opacity: 0.15;
position: absolute;
width: 150px;
left: 20px;
}
.circle {
background-image: radial-gradient(ellipse at 50px 10px , #ffffff 0%, #fff 5%, #00ff00 100%);
border: 10px solid;
border-radius: 50%;
height: 200px;
position: relative;
width: 200px;
}
<div class="circle">
</div>
You can do it using a single element also by layering one radial-gradient image of the required size on top of an angled linear-gradient image and then positioning it appropriately. Multiple background images and layering has very good browser support (IE9+) but gradients are supported only in IE10+.
.circle {
border: 10px solid;
border-radius: 50%;
width: 200px;
height: 200px;
background: radial-gradient(ellipse at 90px 45px, rgba(255, 255, 255, 0.75) 10%, rgba(255,255,255,0.5) 30%, rgba(255,255,255,0) 32%, rgba(25,240,0,1) 45%), linear-gradient(160deg, transparent 12%, rgb(25, 240, 0) 30%);
background-size: 125% 80%, 100% 100%;
background-repeat: no-repeat;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<div class="circle"></div>
Browser Compatibility Charts:
Multiple background images and layering
Gradients
<!doctype html>
<html>
<head>
<style>
.circle {
border:10px solid;
border-radius: 50%;
width: 200px;
height: 200px;
background: rgb(25,240,0); /* Old browsers */
background: -moz-linear-gradient(top, rgba(25,240,0,1) 0%, rgba(255,255,255,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,rgba(25,240,0,1)), color-stop(100%,rgba(255,255,255,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(top, rgba(25,240,0,1) 0%,rgba(255,255,255,1) 100%); /* Chrome10+,Safari5.1+ */
background: -o-linear-gradient(top, rgba(25,240,0,1) 0%,rgba(255,255,255,1) 100%); /* Opera 11.10+ */
background: -ms-linear-gradient(top, rgba(25,240,0,1) 0%,rgba(255,255,255,1) 100%); /* IE10+ */
background: linear-gradient(to top, rgba(25,240,0,1) 0%,rgba(255,255,255,1) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#19f000', endColorstr='#ffffff',GradientType=0 ); /* IE6-9 */
}
</style>
<head>
<body>
<div class="circle">
</div>
</body>
</html>
Please use background gradient color as mentioned above. i hope this woould helpful to you
here is the working demo.Demo
Try box shadow like this: Updated Demo
Adjust the shadow values and background gradient colors according to your need.
.circle {
border:10px solid;
border-radius: 50%;
width: 200px;
height: 200px;
background: #f8ffe8;
background: url(data:image/svg+xml;
base64, 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);
background: -moz-linear-gradient(top, #f8ffe8 0%, #56bc6c 17%, #199b00 100%);
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #f8ffe8), color-stop(17%, #56bc6c), color-stop(100%, #199b00));
background: -webkit-linear-gradient(top, #f8ffe8 0%, #56bc6c 17%, #199b00 100%);
background: -o-linear-gradient(top, #f8ffe8 0%, #56bc6c 17%, #199b00 100%);
background: -ms-linear-gradient(top, #f8ffe8 0%, #56bc6c 17%, #199b00 100%);
background: linear-gradient(to bottom, #f8ffe8 0%, #56bc6c 17%, #199b00 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#f8ffe8', endColorstr='#199b00', GradientType=0);
-webkit-box-shadow: inset -1px 60px 68px -28px rgba(255, 255, 255, 1);
-moz-box-shadow: inset -1px 60px 68px -28px rgba(255, 255, 255, 1);
box-shadow: inset -1px 60px 68px -28px rgba(255, 255, 255, 1);
}

Colour fade to transparent on both sides of a div

I need to create strip with a colour fade on each side of a div as shown in image below using CSS.
How to do so?
Over a plain colour:
To make the colour fade on both sides, you can use 2 inset box-shadows with a positive blur and negative spread radius :
DEMO
body {
background: #D4D4CC;
}
div {
height: 100px;
background: #fff;
box-shadow: inset 100px 0px 100px -50px #D4D4CC,
inset -100px 0px 100px -50px #D4D4CC;
}
<div></div>
Over an image :
If you need to fade both sides over an image or a non plain colour, you can use this approach with a pseudo element and a box-shadow :
Output :
div{
height:100px;
overflow:hidden;
padding:0 100px;
margin:20px;
}
div:before{
content:'';
display:block;
height:100%;
background:#D4D4CC;
box-shadow: 0px 0px 80px 50px #D4D4CC;
}
body{
background: url('http://i.imgur.com/hPLqUtN.jpg');
background-size:cover;
}
<div></div>
Note that box-shadows are supported by IE9 and over
kind of what you want, its css gradients. check w3schools.
i provide a sample code. put this in your class
background: -webkit-linear-gradient(left, red , white, red); /* For Safari 5.1 to 6.0 */
background: -o-linear-gradient(right, red, white, red); /* For Opera 11.1 to 12.0 */
background: -moz-linear-gradient(right, red, white, red); /* For Firefox 3.6 to 15 */
background: linear-gradient(to right, red , white, red); /* Standard syntax (must be last) */
border-top: 5px solid red;
border-bottom: 5px solid red;
You could use gradient / the gradient tool from http://www.colorzilla.com/gradient-editor/
and this fiddle i just made for you:
http://jsfiddle.net/52f4awdc/
.gradient {
background: rgb(219,218,210); /* Old browsers */
background: -moz-linear-gradient(left, rgba(219,218,210,1) 1%, rgba(255,255,255,1) 53%, rgba(219,218,210,1) 100%); /* FF3.6+ */
background: -webkit-gradient(linear, left top, right top, color-stop(1%,rgba(219,218,210,1)), color-stop(53%,rgba(255,255,255,1)), color-stop(100%,rgba(219,218,210,1))); /* Chrome,Safari4+ */
background: -webkit-linear-gradient(left, rgba(219,218,210,1) 1%,rgba(255,255,255,1) 53%,rgba(219,218,210,1) 100%); /* Chrome10+,Safari5.1+ */
}
You can try like this:
HTML:
<div class="outer">
<div class="inner"></div>
</div>
CSS:
.outer {
background-color:#ccc;
width:400px;
margin:0 auto;
height: 30px;
padding:5px;
}
.inner {
background: -moz-linear-gradient(left, rgba(255,255,255,0.54) 0%, rgba(255,252,173,1) 16%, rgba(255,252,173,1) 85%, rgba(255,255,255,0.41) 100%);
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,0.54)), color-stop(16%,rgba(255,252,173,1)), color-stop(85%,rgba(255,252,173,1)), color-stop(100%,rgba(255,255,255,0.41)));
background: -webkit-linear-gradient(left, rgba(255,255,255,0.54) 0%,rgba(255,252,173,1) 16%,rgba(255,252,173,1) 85%,rgba(255,255,255,0.41) 100%);
background: -o-linear-gradient(left, rgba(255,255,255,0.54) 0%,rgba(255,252,173,1) 16%,rgba(255,252,173,1) 85%,rgba(255,255,255,0.41) 100%);
background: -ms-linear-gradient(left, rgba(255,255,255,0.54) 0%,rgba(255,252,173,1) 16%,rgba(255,252,173,1) 85%,rgba(255,255,255,0.41) 100%);
background: linear-gradient(to right, rgba(255,255,255,0.54) 0%,rgba(255,252,173,1) 16%,rgba(255,252,173,1) 85%,rgba(255,255,255,0.41) 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#8affffff', endColorstr='#69ffffff',GradientType=1 );
width:100%;
margin:0 auto;
height: 100%;
}

Middle bottom box-shadow

I'm tying to create an H2 with a box-show below the bottom border
here is my "base" code :
<div class="bloc-principal">
<h2 id="toto">My H2</h2>
</div>
<style type="text/css">
#toto{
box-shadow: 0 4px 2px -2px gray;
}
</style>
But i want to get this result : http://www.hostingpics.net/viewer.php?id=275479boxshadow.png
There are no border on the other side, just this little shadow on the middle of bottom side.
I tried to find tutorials but i didn't get the same result AT ALL....
I think a multi-color/fading shadow is beyond the capabilities of the box-shadow property. I used an absolute positioned element with that gradient and placed it on top of the text.
http://jsfiddle.net/efdJA/
#toto {
position:relative;
background-color:white;
height:100px;
border:1px solid red;
}
#toto:before {
background: rgb(255,255,255);
background: url(data:image/svg+xml;base64,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);
background: -moz-linear-gradient(left, rgba(255,255,255,1) 0%, rgba(226,226,226,1) 50%, rgba(255,255,255,1) 100%);
background: -webkit-gradient(linear, left top, right top, color-stop(0%,rgba(255,255,255,1)), color-stop(50%,rgba(226,226,226,1)), color-stop(100%,rgba(255,255,255,1)));
background: -webkit-linear-gradient(left, rgba(255,255,255,1) 0%,rgba(226,226,226,1) 50%,rgba(255,255,255,1) 100%);
background: -o-linear-gradient(left, rgba(255,255,255,1) 0%,rgba(226,226,226,1) 50%,rgba(255,255,255,1) 100%);
background: -ms-linear-gradient(left, rgba(255,255,255,1) 0%,rgba(226,226,226,1) 50%,rgba(255,255,255,1) 100%);
background: linear-gradient(to right, rgba(255,255,255,1) 0%,rgba(226,226,226,1) 50%,rgba(255,255,255,1) 100%);
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#ffffff',GradientType=1 );
position:absolute;
bottom:0;
left:0;
width:100%;
height:10px;
content:'';
}
Sorry for the horrendous background gibberish, I used the amazing CSS Gradient Generator.
Add a clipping to the shadow layer so you can make your box also semi transparant
#toto {
position:relative;
background: rgba(8,55,81,0.8);
height:100px;
}
#toto:after {
position: absolute;
width: 90%;
height: 5%;
left: 5%;
border-radius: 50%;
z-index: -1;
bottom: 0%;
content: "";
box-shadow: 0 4px 12px rgba(0,0,0,0.8);
clip:rect(8px,auto,40px,auto);
}