I've been playing around with using #keyframes to build a simple mega menu. I'm only learning but would this be an accepted way to show/hide the <nav> items for use in the real world? More than anything I wanted the transistion in/out effect but kept triggering the menu by hovering over the opaque object.
https://codepen.io/ngcook1985/pen/bGvqRRp
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.header {
height: 80px;
width: 100%;
background-color: rgb(84, 161, 228);
position: relative;
}
.menu {
position: absolute;
height: 120px;
width: 100%;
top: -180px;
background-color: rgb(74, 234, 181);
opacity: 0;
animation: hide .3s linear;
}
.header:hover .menu {
animation: show .3s linear;
opacity: 1;
top: 80px;
}
#keyframes show {
0% {
opacity: 0;
}
100% {
opacity: 1;
}
}
#keyframes hide {
0% {
opacity: 1;
top: 80px;
}
100% {
top: 80px;
opacity: 0;
}
}
<body>
<div class="header">
<div class="menu"></div>
</div>
</body>
Related
I am studying CSS animation. I want my animation moving one by one, as I don't know JS I want to do it by CSS only. How can I do this? I faced the problem of rules from and to in animations, when I change them the animations don't work as expected.
I have the following HTML
body {
margin: 0;
background: grey;
}
main {
font-family: Open Sans;
text-transform: uppercase;
line-height: 1;
position: absolute;
width: 100%;
height: 100%;
overflow: hidden;
background: transparent;
}
.animation {
width: 20em;
height: 4em;
margin: 1em auto;
position: relative;
}
.squares {
margin: auto;
background: red;
/* display: flex;
flex-wrap: wrap;
justify-content: center;*/
}
.small_square {
width: 10px;
height: 10px;
background-color: white;
text-align: center;
display: block;
text-align: center;
position: relative;
margin: 0;
padding: 0;
left: 48%;
animation: appearance_small 1s ease-in-out;
animation: move_around 3s ease-in-out;
*/
}
.big_square {
margin: auto;
width: 40px;
height: 40px;
background-color: black;
display: block;
position: relative;
top: 30px;
animation: appearance_big 1.3s ease-in-out;
animation-delay: 2s;
animation: spin 3s ease-in-out;
forwards;
}
#keyframes appearance_big {
0% {
transform: scale(0%);
}
100% {
opacity: 1;
}
}
#keyframes appearance_small {
0% {
opacity: 0;
transform: scale(0%);
top: 50px;
}
100% {
opacity: 1;
top: 0px;
}
}
#keyframes spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(180deg);
}
}
#keyframes move_around {
from {
transform: translate(50%, 50px) rotate(0turn) translate(-50%, -50px);
}
to {
transform: translate(50%, 50px) rotate(0.50turn) translate(-0%, -50px);
}
<main>
<div id="animation" class="animation">
<div class="squares">
<div class="small_square"></div>
<div class="big_square"></div>
</div>
</main>
I'm creating a CSS only slider with text content.
It's based on https://codepen.io/cassidoo/pen/MyaWzp
html,
body {
font-family: 'Droid Serif', serif;
}
h1 {
font-size: 60px;
text-align: center;
}
.content-slider {
width: 100%;
height: 360px;
}
.slider {
height: 320px;
width: 680px;
margin: 40px auto 0;
overflow: visible;
position: relative;
}
.mask {
overflow: hidden;
height: 320px;
}
.slider ul {
margin: 0;
padding: 0;
position: relative;
}
.slider li {
width: 680px;
height: 320px;
position: absolute;
top: -325px;
list-style: none;
}
.slider .quote {
font-size: 40px;
font-style: italic;
}
.slider .source {
font-size: 20px;
text-align: right;
}
.slider li.anim1 {
animation: cycle 15s linear infinite;
}
.slider li.anim2 {
animation: cycle2 15s linear infinite;
}
.slider li.anim3 {
animation: cycle3 15s linear infinite;
}
.slider li.anim4 {
animation: cycle4 15s linear infinite;
}
.slider li.anim5 {
animation: cycle5 15s linear infinite;
}
.slider:hover li {
animation-play-state: paused;
}
#keyframes cycle {
0% {
top: 0px;
}
4% {
top: 0px;
}
16% {
top: 0px;
opacity: 1;
z-index: 0;
}
20% {
top: 325px;
opacity: 0;
z-index: 0;
}
21% {
top: -325px;
opacity: 0;
z-index: -1;
}
50% {
top: -325px;
opacity: 0;
z-index: -1;
}
92% {
top: -325px;
opacity: 0;
z-index: 0;
}
96% {
top: -325px;
opacity: 0;
}
100% {
top: 0px;
opacity: 1;
}
}
#keyframes cycle2 {
0% {
top: -325px;
opacity: 0;
}
16% {
top: -325px;
opacity: 0;
}
20% {
top: 0px;
opacity: 1;
}
24% {
top: 0px;
opacity: 1;
}
36% {
top: 0px;
opacity: 1;
z-index: 0;
}
40% {
top: 325px;
opacity: 0;
z-index: 0;
}
41% {
top: -325px;
opacity: 0;
z-index: -1;
}
100% {
top: -325px;
opacity: 0;
z-index: -1;
}
}
#keyframes cycle3 {
0% {
top: -325px;
opacity: 0;
}
36% {
top: -325px;
opacity: 0;
}
40% {
top: 0px;
opacity: 1;
}
44% {
top: 0px;
opacity: 1;
}
56% {
top: 0px;
opacity: 1;
z-index: 0;
}
60% {
top: 325px;
opacity: 0;
z-index: 0;
}
61% {
top: -325px;
opacity: 0;
z-index: -1;
}
100% {
top: -325px;
opacity: 0;
z-index: -1;
}
}
#keyframes cycle4 {
0% {
top: -325px;
opacity: 0;
}
56% {
top: -325px;
opacity: 0;
}
60% {
top: 0px;
opacity: 1;
}
64% {
top: 0px;
opacity: 1;
}
76% {
top: 0px;
opacity: 1;
z-index: 0;
}
80% {
top: 325px;
opacity: 0;
z-index: 0;
}
81% {
top: -325px;
opacity: 0;
z-index: -1;
}
100% {
top: -325px;
opacity: 0;
z-index: -1;
}
}
#keyframes cycle5 {
0% {
top: -325px;
opacity: 0;
}
76% {
top: -325px;
opacity: 0;
}
80% {
top: 0px;
opacity: 1;
}
84% {
top: 0px;
opacity: 1;
}
96% {
top: 0px;
opacity: 1;
z-index: 0;
}
100% {
top: 325px;
opacity: 0;
z-index: 0;
}
}
<h1>Pure CSS3 Text Carousel</h1>
<div class="content-slider">
<div class="slider">
<div class="mask">
<ul>
<li class="anim1">
<div class="quote">Hello, this is a quote from a person.</div>
<div class="source">- Person</div>
</li>
<li class="anim2">
<div class="quote">Hello, this is a quote from another person.</div>
<div class="source">- Another person</div>
</li>
<li class="anim3">
<div class="quote">Hello, this is a quote from an animal.</div>
<div class="source">- Animal</div>
</li>
<li class="anim4">
<div class="quote">Hello, this is a quote from a plant.</div>
<div class="source">- Plant</div>
</li>
<li class="anim5">
<div class="quote">How do ya like that.</div>
<div class="source">- Cassidy</div>
</li>
</ul>
</div>
</div>
</div>
Everything works fine, but the pause on hover function pauses the animation in the current position, which can be in the middle of a cycle. This is the correct en obvious behavior, but not ideal for my slider.
The image below shows a cycle paused at about 50%:
Is there some way to get the active cycle to finish before pausing?
If not, would there be some trick to disable pointer-events during cycles?
UPDATE:
I have it working now in Chrome and Firefox, but Safari does not seem to accept pointer-events in keyframes.
I added a background to confirm the timing for the idle instances.
I actually added an extra keyframe for this on the .slider div and added step-start to remove the transition. This animation also pauses on hover, of course, otherwise the animations would run asynchronously after hovering the slider.
https://jsfiddle.net/8f1senmt/
Anyone know why Safari does not play along? Would it just be a restriction or is another setting messing this up?
I played a bit with your code, if you add these lines it will work.
I added pointer-events: none to the slider. Only in specific frames it will be set to auto.
I gave background-color to the slider in the frames where you can hover and only then it will stop. The only problem is :hover will only be recognised, if you move with your mouse. So if the mouse is in the slider, but not moving it won't work.
You will also need to adjust the time-frames, because the background-color is not on the right frame.
.slider {
height: 320px;
width: 680px;
margin: 40px auto 0;
overflow: visible;
position: relative;
pointer-events: none;
animation: slidercycle 15s linear infinite;
}
.slider:hover{
animation-play-state: paused;
}
#keyframes slidercycle {
0% {
pointer-events: none;
}
19% {
pointer-events: auto;
background-color: transparent;
}
20% {
pointer-events: auto;
background-color: red;
}
21% {
pointer-events: none;
background-color: transparent;
}
39%{
pointer-events: none;
background-color: transparent;
}
40% {
pointer-events: auto;
background-color: blue;
}
41% {
pointer-events: none;
background-color: transparent;
}
59%{
pointer-events: none;
background-color: transparent;
}
60% {
pointer-events: auto;
background-color: green;
}
61% {
pointer-events: none;
background-color: transparent;
}
79%{
pointer-events: none;
background-color: transparent;
}
80% {
pointer-events: auto;
background-color: yellow;
}
81% {
pointer-events: none;
background-color: transparent;
}
100%{
pointer-events: none;
background-color: transparent;
}
}
Im not sure about this, but I think you could also use only one cicle for each list element and work with animation-delay.
I'm using materialize css. Can you guys tell me how to change the color of
the linear Preloader?
<div class="progress">
<div class="indeterminate"></div>
</div>
I want to change the color to blue.
I took a look inside the sass files for the framework and you actually need to target:
.progress {
background-color: darkblue;
}
.progress .indeterminate {
background-color: steelblue;
}
https://codepen.io/doughballs/pen/BaNVOBQ
Try this i think it's helpful to you..
html
<div class="progress">
<div class="indeterminate"></div>
</div>
css
/* Progress Bar */
.progress {
position: relative;
height: 4px;
display: block;
width: 100%;
background-color: #acece6;
border-radius: 2px;
background-clip: padding-box;
margin: 0.5rem 0 1rem 0;
overflow: hidden; }
.progress .indeterminate {
background-color: red; }
.progress .indeterminate:before {
content: '';
position: absolute;
background-color: inherit;
top: 0;
left: 0;
bottom: 0;
will-change: left, right;
-webkit-animation: indeterminate 2.1s cubic-bezier(0.65, 0.815, 0.735, 0.395) infinite;
animation: indeterminate 2.1s cubic-bezier(0.65, 0.815, 0.735, 0.395) infinite; }
.progress .indeterminate:after {
content: '';
position: absolute;
background-color: inherit;
top: 0;
left: 0;
bottom: 0;
will-change: left, right;
-webkit-animation: indeterminate-short 2.1s cubic-bezier(0.165, 0.84, 0.44, 1) infinite;
animation: indeterminate-short 2.1s cubic-bezier(0.165, 0.84, 0.44, 1) infinite;
-webkit-animation-delay: 1.15s;
animation-delay: 1.15s; }
#-webkit-keyframes indeterminate {
0% {
left: -35%;
right: 100%; }
60% {
left: 100%;
right: -90%; }
100% {
left: 100%;
right: -90%; } }
#keyframes indeterminate {
0% {
left: -35%;
right: 100%; }
60% {
left: 100%;
right: -90%; }
100% {
left: 100%;
right: -90%; } }
#-webkit-keyframes indeterminate-short {
0% {
left: -200%;
right: 100%; }
60% {
left: 107%;
right: -8%; }
100% {
left: 107%;
right: -8%; } }
#keyframes indeterminate-short {
0% {
left: -200%;
right: 100%; }
60% {
left: 107%;
right: -8%; }
100% {
left: 107%;
right: -8%; }
}
Solution 1:
<div class="progress">
<div class="indeterminate"></div>
</div>
Add background-color to both classes progress and indeterminate
.progress{
background-color: blue;
}
.indeterminate{
background-color: yellow;
}
Solution 2:
Simply use materialize color classes.
<div class="progress blue">
<div class="indeterminate yellow"></div>
</div>
.progress{
margin-top:50%;
background-color:gray;
}
.progress .indeterminate {
background-color: orange;
}
You just need to change these two css only.
I have created a border-like keyframe CSS style. When I hover the button the border-like animation should start from top-right to top-left then to bottom-left then after to bottom-right and finally to top-right again. When I hover the button the previous sequence should happen and is already created. However; when hovered, the text inside the button moves, which makes the button looks weird.
I looked at the answer to this question, but it's not applicable in my case as I am not using border styling on hover. Instead, I am changing the background color, width, and height of the three spans, not borders.
How can I prevent this shake with the method the animation is created?
CodePen: https://codepen.io/Tes3awy/pen/ZZRpBW
HTML
<div class="wrapper">
<a class="custom-btn" href="https://mince.34way.com/about/" title="About">
About Us
<span class="border-top"></span>
<span class="border-right"></span>
<span class="border-bottom"></span>
<span class="border-left"></span>
</a>
</div>
CSS
body {
position: relative;
height: 100vh;
}
.wrapper {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.custom-btn {
position: relative;
width: 183px;
height: 55px;
line-height: 55px;
display: inline-block;
text-align: center;
text-transform: uppercase;
margin: 0 auto;
border: 2px solid #77a942;
color: #77a942;
text-decoration: none;
}
span[class^="border-"] {
opacity: 0;
}
.border-top {
position: absolute;
top: -2px;
right: 0;
width: 100%;
height: 3px;
background-color: transparent;
}
.border-left {
position: absolute;
top: 0;
left: -2px;
width: 3px;
height: 100%;
background-color: transparent;
}
.border-bottom {
position: absolute;
left: 0;
bottom: -2px;
width: 100%;
height: 3px;
background-color: transparent;
}
.border-right {
position: absolute;
bottom: 0;
right: -2px;
width: 3px;
height: 100%;
background-color: transparent;
}
.custom-btn:hover .border-top {
animation: animateTop .2s 1 alternate ease forwards;
}
.custom-btn:hover .border-left {
animation: animateLeft .2s 1 alternate ease forwards;
animation-delay: .2s;
}
.custom-btn:hover .border-bottom {
animation: animateBottom .2s 1 alternate ease forwards;
animation-delay: .4s;
}
.custom-btn:hover .border-right {
animation: animateRight .2s 1 alternate ease forwards;
animation-delay: .6s;
}
#keyframes animateTop {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 50%;
height: 3px;
opacity: 1;
background-color: #77a942;
}
100% {
width: 100%;
height: 3px;
opacity: 1;
background-color: #77a942;
}
}
#keyframes animateLeft {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 3px;
height: 50%;
opacity: 1;
background-color: #77a942;
}
100% {
width: 3px;
height: 100%;
opacity: 1;
background-color: #77a942;
}
}
#keyframes animateBottom {
0% {
width: 0;
height: 0;
opacity: 0;
background-color:#77a942;
}
50% {
width: 50%;
height: 3px;
opacity: 1;
background-color:#77a942;
}
100% {
width: 100%;
height: 3px;
opacity: 1;
background-color:#77a942;
}
}
#keyframes animateRight {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 3px;
height: 50%;
opacity: 1;
background-color: #77a942;
}
100% {
width: 3px;
height: 100%;
opacity: 1;
background-color: #77a942;
}
}
When you translate things by 50%, they may end up in-between pixels. When you use a transition, CSS tends to change its mind on what pixel it rounds to. Try to make sure that the button you're centering text in has height/width that CSS has a definite position it can settle on when you divide it by half.
Here's a simple example of what I mean.
HTML
<div class="main-container">
<div class="ht-tx1"></div>
<div class="headtest"></div>
<div class="ht-tx2"></div>
</div>
CSS
.main-container {
width: 100%;
height: 200px;
margin: 250px 0 0 0;
position: relative;
background-color: yellow;
}
.headtest {
font-family: 'quicksand', helvetica;
background-color: #a2aba2;
width: 100%;
height: 200px;
position: absolute;
top: 0;
right: 0;
}
.ht-tx1 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani1 2s forwards;
position: absolute;
top: 0;
right: 0;
}
.ht-tx2 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani2 2s forwards;
position: absolute;
bottom: 0;
right: 0;
}
#keyframes test-ani1 {
100% {
transform: translateY(-20px);
}
}
#keyframes test-ani2 {
100% {
transform: translateY(20px);
}
}
-
If you view in Chrome, both black bars slide out perfectly. The one transitioning from behind, and the one in front.
If you view it in Firefox, the bar transitioning from behind is broken. It sometimes works, but mostly it ignores the slide animation and just appears at the end of the animation duration.
I've re-created this a number of times and it seems that items that transition from behind another element are broken in firefox.
I've tried using -moz- which doesn't work. IS there anything else you can think of?
I've tried it without the absolute positioning, with z-indexs. and nothing seems to work.
EDIT ----
I appreciate work-around ideas, but I'd really like to know the route cause of this if anyone knows?
Thanks very much.
It seems Firefox is inconsistent when animate the transform property, and I can't say why (yet), most likely a bug though.
Here is 2 workarounds to achieve the same effect
.main-container {
width: 100%;
height: 200px;
margin: 50px 0 0 0;
position: relative;
background-color: yellow;
}
.headtest {
font-family: 'quicksand', helvetica;
background-color: #a2aba2;
width: 100%;
height: 200px;
position: absolute;
top: 0;
right: 0;
}
.ht-tx1 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani1 2s forwards;
position: absolute;
top: 0;
right: 0;
}
.ht-tx2 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani2 2s forwards;
position: absolute;
bottom: 0;
right: 0;
}
#keyframes test-ani1 {
0% {
transform: translateY(-1px);
}
0.1% {
transform: translateY(0px);
}
100% {
transform: translateY(-20px);
}
}
#keyframes test-ani2 {
100% {
transform: translateY(20px);
}
}
<div class="main-container">
<div class="ht-tx1"></div>
<div class="headtest"></div>
<div class="ht-tx2"></div>
</div>
.main-container {
width: 100%;
height: 200px;
margin: 50px 0 0 0;
position: relative;
background-color: yellow;
}
.headtest {
font-family: 'quicksand', helvetica;
background-color: #a2aba2;
width: 100%;
height: 200px;
position: absolute;
top: 0;
right: 0;
}
.ht-tx1 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani1 2s forwards;
position: absolute;
top: 0;
right: 0;
}
.ht-tx2 {
width: 100%;
height: 0px;
text-align: center;
background-color: #000;
animation: test-ani2 2s forwards;
position: absolute;
bottom: 0;
right: 0;
}
#keyframes test-ani1 {
100% {
top: -20px;
}
}
#keyframes test-ani2 {
100% {
height: 20px;
bottom: -20px;
}
}
<div class="main-container">
<div class="ht-tx1"></div>
<div class="headtest"></div>
<div class="ht-tx2"></div>
</div>
The solution relies on the z-index property of your elements: if you don't specify it the elements lay out one on top of the others, following the flow of the HTML document, when their "position" is set to "absolute". So "ht-txt1" is underneath "headtest" and "ht-tx2" is on top of "headtest".
To correct this "ht-tx1" and "ht-tx2" should take a "z-index" value of -1, so they are hidden underneath "headtest".
As for FF compatibility you need to prefix your "transform" effect with -moz-, check http://caniuse.com/#feat=transforms2d for more details.
Here's the CSS style code:
.main-container {
width: 100%;
height: 200px;
margin: 250px 0 0 0;
position: relative;
background-color: yellow;
}
.headtest {
font-family: 'quicksand', helvetica;
background-color: #a2aba2;
width: 100%;
height: 200px;
position: absolute;
top: 0;
right: 0;
}
.ht-tx1 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani1 2s forwards;
position: absolute;
top: 0;
right: 0;
z-index: -1;
}
.ht-tx2 {
width: 100%;
height: 20px;
text-align: center;
background-color: #000;
animation: test-ani2 2s forwards;
position: absolute;
bottom: 0;
right: 0;
z-index: -1;
}
#keyframes test-ani1 {
100% {
-ms-transform: translateY(-20px);
-webkit-transform: translateY(-20px);
-moz-transform: translateY(-20px);
transform: translateY(-20px);
}
}
#keyframes test-ani2 {
100% {
-ms-transform: translateY(20px);
-webkit-transform: translateY(20px);
-moz-transform: translateY(20px);
transform: translateY(20px);
}
}