CSS box-shadow on divs over image/video background impossible? - background

I'm having a superbgimage/jw player background on my website in progress. When I apply a CSS box-shadow on the content divs above the background, the shadow does not mix (does not darken) with the background. It looks like a grey halo. Do box-shadows only work on white backgrounds?
Halo instead of shadow mixing with background image (darkening it)
CSS for superbgimage background and jQuery Isotope plugin divs
#background {
background: inherit;
}
#superbgimage {
display: none;
}
.item {
margin-bottom: 4px;
-moz-box-shadow: 3px 3px 5px 6px #ccc;
-webkit-box-shadow: 3px 3px 5px 6px #ccc;
box-shadow: 3px 3px 5px 6px #ccc;
}
Divs for background
<fieldset id="background">
...
</fieldset>
<div id="superbgimage"></div>
Script for background
<script type="text/javascript">
$(document).ready(function () {
$.fn.superbgimage.options = {
preload: 1,
randomtransition: 0,
slideshow: 1,
slide_interval: 9000,
randomimage: 1,
speed: 3000,
transition: 1
};
$('#background').superbgimage().hide();
});
</script>

Make sure you are using a cross-browser solution like this:
.shadow {
-moz-box-shadow: 0 0 5px #888;
-webkit-box-shadow: 0 0 5px #888;
box-shadow: 0 0 5px #888;
}

Use RGBA colors instead of HEX. RGBA will allow you to set an opacity for the color allowing the background to bleed through.
Example:
rgba(0,0,255,0.5)
On a side note, try using an online generator for CSS3 elements like box-shadow, it will take the guess work out of creating these more complex elements:
http://css3generator.com/

Related

styling npm vuejs-paginate component

I am using the npm package https://www.npmjs.com/package/vuejs-paginate
to handle pagination in a vuejs application.
I would like to style this pagination component.
My styling successfully sets the background of page number buttons yellow when the user hovers over them, but fails to set the background of the current page to green. Why?
Here is my component tag with the props.
<paginate
:pageCount="totalPages"
:click-handler="paginateCallback"
:prevText="'Prev'"
:nextText="'Next'"
:containerClass="'pagination'"
class="pagination"
v-model="pageNumber"
></paginate>
And here is the css...
.pagination a {
float: left;
padding: 8px 16px;
text-decoration: none;
border: 1px solid #ddd;
background-color: white;
}
.pagination a.active {
background-color: green;
}
.pagination a:hover:not(.active) {background-color: yellow;}
.pagination a:first-child {
border-top-left-radius: 5px;
border-bottom-left-radius: 5px;
}
.pagination a:last-child {
border-top-right-radius: 5px;
border-bottom-right-radius: 5px;
}
By the way, in case it is relevant information, the application uses bootstrap-vue elsewhere.
Thanks to the first answer below, I was able to resolve this.
Here is the working css after adding the active-class prop to the component...
.pagination li {
float: left;
padding: 8px 16px;
text-decoration: none;
border: 1px solid #ddd;
color: white;
background-color: white;
font-size: 1em;
}
.pagination li.pagination-active {
background-color: green;
}
.pagination li:hover:not(.active) {background-color: yellow;}
Now, however, there is a border around the number of the active page button until the user clicks again anywhere on the page. How can we eliminate this border?
As the documentations says: there is an active class prop that you can set and style that class. see the props in the link above.
<paginate
:pageCount="totalPages"
:click-handler="paginateCallback"
:prevText="'Prev'"
:nextText="'Next'"
:active-class="myActiveBtn"
:containerClass="'pagination'"
class="pagination"
v-model="pageNumber"
></paginate>
style:
.myActiveBtn{
background-color: green;
}

Not able to change v-dialog style

I want to change the margin on the .v-dialog class and the max-height when it's not full screen.
The code from the console:
.v-dialog {
border-radius: 4px;
margin: 24px; <-------- want to change this
overflow-y: auto;
pointer-events: auto;
-webkit-transition: .3s cubic-bezier(.25,.8,.25,1);
transition: .3s cubic-bezier(.25,.8,.25,1);
width: 100%;
z-index: inherit;
-webkit-box-shadow: 0 11px 15px -7px rgba(0,0,0,.2), 0 24px 38px 3px rgba(0,0,0,.14), 0 9px 46px 8px rgba(0,0,0,.12);
box-shadow: 0 11px 15px -7px rgba(0,0,0,.2), 0 24px 38px 3px rgba(0,0,0,.14), 0 9px 46px 8px rgba(0,
}
and:
.v-dialog:not(.v-dialog--fullscreen) {
max-height: 90%; <--------- want to change this
}
It's not enough just to add a class to the v-dialog component somehow it dosen't register it.
It's always a good idea to use the docs for reference, if you haven't done so already.
https://dev.vuetifyjs.com/en/components/dialogs#dialogs
You have to use the content-class property, instead of the normal class, if you want to attach a class to the v-dialog
Applies a custom class to the detached element. This is useful because
the content is moved to the beginning of the v-app component (unless
the attach prop is provided) and is not targettable by classes passed
directly on the component.
In this class you can then override the margin and max-height:
.custom-dialog.v-dialog{
margin: 10px;
}
.custom-dialog.v-dialog:not(.v-dialog--fullscreen) {
max-height: 50%;
}

Bootstrap Vue Animate Dropdowns

I am using bootstrap vue and am trying to animate/transition the drop downs. This is proving to be fairly difficult as they do not use v-if or v-show so the transition will not work. Alternatively because the way the components work if you use v-if the drop down trigger will be hidden. I can't find anything online to bootstrap vue specifically on this but I feel this shouldn't be as tough as it has turned out to be. thanks for any help you can give
<div id="app">
<b-navbar type="dark" fixed>
<b-navbar-nav class="ml-auto">
<b-nav-item-dropdown text="Tools">
<b-dropdown-item to="/navItem1">Item 1</b-dropdown-item>
<b-dropdown-item to="/export"> Item 2</b-dropdown-item>
</b-nav-item-dropdown>
// This won't work as it hides the main dropdown trigger right form the start
<b-nav-item-dropdown text="Tools" v-if="toggleDropdown">
<b-dropdown-item to="/navItem1">Item 1</b-dropdown-item>
<b-dropdown-item to="/export"> Item 2</b-dropdown-item>
</b-nav-item-dropdown>
</b-navbar-nav>
</b-navbar>
</div>
<script>
export default {
name: 'nav',
data () {
return { toggleDropdown: false }
},
mounted: function () {
// I can listen for events here but I still can't trigger the transition
this.$root.$on('bv::dropdown::show', bvEvent => {
this.toggleDropdown = true
})
this.$root.$on('bv::dropdown::hide', bvEvent => {
this.toggleDropdown = false
})
}
}
</script>
<style lang="scss">
.navbar {
.dropdown-menu {
transform-origin: top;
transition: transform 10s ease-in-out;;
}
}
.dd-slide-enter,
.dd-slide-leave-to { transform: scaleY(0); }
</style>
It's pretty hard to achieve a clean slide-up/down animation because BootstrapVue uses display:none/block to hide/show the dropdown menu. What you can do it's manipulate the max-height of the element as explained here.
I added an 'animated' class to the parent element, for example your b-navbar to select which dropdown has to be animated. Then i removed display: none from the default status of the dropdown and hidden it setting its max-height and padding to 0 and its border to none. When you click the button the dropdown gets the class 'show'so you can give it a max-height different than 0, as explained in the answer i've linked to you, you have to set it higher than the actual height of the dropdown menu otherwise it gets cropped out.
.animated {
.dropdown-menu {
overflow: hidden;
display: block!important;
max-height: 0!important;
&:not(.show) {
padding: 0;
border: none;
}
&.show {
transition: max-height 300ms ease-in-out;
max-height: 500px!important; //this must have to be higher than the max height of the dropdown list
}
}
}
Just came across this same issue.
Ended up following with previous example, but this one works for both up/down transitions and doesn't mess with overflows in case you want to add triangles.
.dropdown-menu {
border: 1px solid #ebeef5;
box-shadow: 0 5px 25px 0 rgba(0, 0, 0, 0.25);
// Slide down transtion
display: block !important;
&:not(.show) {
padding: 0px;
border-width: 0px;
border-color: transparent;
box-shadow: none;
transition: padding 1.3s ease, border-width 1.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
> li {
max-height: 0px;
overflow: hidden;
transition: max-height 0.3s ease;
}
&.show {
> li {
max-height: 100px;
}
}
// Add chevron to top
&[x-placement^="bottom"] {
&::before {
content:"";
position: absolute;
right: 11px;
top: -5px;
width: 0;
height: 0;
border-style: solid;
border-width: 0 5px 5px 5px;
border-color: transparent transparent #fff transparent;
z-index: 99999999;
}
}
// Add chevron to bottom
&[x-placement^="top"] {
&::after {
content:"";
position: absolute;
right: 11px;
bottom: -5px;
width: 0;
height: 0;
border-style: solid;
border-width: 5px 5px 0 5px;
border-color: #fff transparent transparent transparent;
z-index: 99999999;
}
}
}

iText: HTML to PDF conversion, css issue

I am using the following css and expecting a drop shadow around the divs in the pdf. However, it doesn't appear in the generated pdf using itext. It does show up when the html is viewed in the browser (chrome)
.dropShadow {
-moz-box-shadow:5px 5px #000;
-webkit-box-shadow:5px 5px #000;
box-shadow:5px 5px #000;
}
.dropShadow table {
background-color: #fff;
width: 100%;
border-spacing:15px;
border: 1px solid #000;
}
.dropShadow tr, .dropShadow td {
padding:2px;
}
any ideas why this could occur?

"Additive" property values with LESS mixin

I'm looking for a feature that may or may not be available in LESS.
I have a mixin that adds a "glow" with box-shadow, which I use on various elements - buttons, inputs etc.
.glow() {
box-shadow: 0 0 5px skyBlue;
}
What I'm looking for is a way to make the mixin add the box-shadow as a new comma-seperated value if the element already has a box-shadow.
So, I want this:
.button {
box-shadow: inset 0 5px 10px black;
.glow();
}
To compile to this:
.button {
box-shadow: inset 0 5px 10px black, 0 0 5px skyBlue;
}
I think I recall seeing a similar feature in SASS, but I can't find it anywhere now.
Does this feature exist in LESS, or is there some alternative way to achieve a similar result?
The feature you're looking for is merge. You'd do this:
.glow() {
box-shadow+: 0 0 5px skyBlue;
}
.button {
box-shadow+: inset 0 5px 10px black;
.glow();
}
Note that both rulesets need to use the + syntax for it to work.
Or, you could declare the glow rule as a variable:
#glow: 0 0 5px skyBlue;
.button {
box-shadow: inset 0 5px 10px black, #glow;
}