How to have dynamic overlays over images in angular 2? - javascript

How to have an image in angular 2 like the one above, taken from facebook marketplace. The one I need is the black on, bottom-left.

Create a wrapper div around the image that has a position set to relative, and then create the overlay as a child div, with position set to absolute.
That will position it relative to the container
Here is an example:
.img-container {
position: relative;
}
img {
width: 500px;
}
.overlay {
display: inline-block;
color: white;
background-color: rgba(0,0,0,0.8);
padding: 10px;
border-radius: 10%;
position: absolute;
bottom: 20px;
left: 20px;
}
<div class="img-container">
<img src="http://greenwoodhypno.co.uk/wp-content/uploads/2014/09/test-image.png" />
<div class="overlay">
$75
</div>
</div>

Related

Why is my image taking up more height in the background space than the image itself?

I have inserted an image into a website and now want to write a paragraph in a new div below it. I noticed that there was extra white space and colored each background of the elements pink & red to understand which was causing a problem. The pink is attributed to div of id="parent", and the red is only attributed to the id="hero_image" contained in the parent div. If it's in the parent, why is the red extending beyond the pink? I'm still trying to grasp position in CSS and what the computer "sees".
Here is an image of what I am seeing.
Here is my html & CSS (the nav styling is missing from CSS bc I checked and removed it to make sure it wasn't the issue)
*{
margin: 0;
padding: 0;
border: 0;
}
body {
font-family: 'Noto Sans HK', sans-serif;
}
#parent {
position: relative;
width: 100%;
background-color: violet;
height: 70vw;
}
.hero-text {
position: absolute;
text-align: center;
right: 10vw;
top: 28vw;
z-index: 9;
font-size: 3.5vw;
float: right;
color: white;
}
#logo_png {
max-width: 25vw;
position: absolute;
z-index: 100;
}
#hero_img {
max-width: 85vw;
float: right;
top: 0;
z-index: 100;
background-color: tomato;
}
<div id="parent">
<h1>
<a href='THIS WILL BE LINK TO HOME PAGE'>
<img id="logo_png" src="C:\Users\rebec\Desktop\LBS WEBSITE\Images\lbs_blue_circle_logo_1500x1500.png" alt="Little Big Scientists"/>
</a>
</h1>
<h1>
<img id="hero_img" src="Images/circle_hands_lbsphoto.png" alt="Little Big Scientists"/>
</h1>
<div class="hero-text">
<p>We’re on a mission to teach,
<br>guide, and empower the next
<br> generation of scientists
</p>
</div>
<!-- Div for Nav Bar-->
<div id="container">
<nav>
<ul>
<li>Mission</li>
<li>About</li>
<li>Events</li>
<li>Donate</li>
<li>Contact</li>
</ul>
</nav>
</div>
</div>
<div id="test">
<h2 class="p1">Inspiring Education</h2>
</div>
Your style properties have wrong values !
vh is for height and vw is for width !
anyways , your #hero_img has height : 85vw which is greater than #parent 's height of 70vw.
this should fix the overflow !
#hero_img {
max-width: 25vh;
float: right;
top: 0;
z-index: 100;
background-color: tomato;
}
#parent {
position: relative;
width: 100%;
background-color: violet;
height: 35vh;
}
vh and vw are relative units used to style the element according to the size of the view port !
this article covers more about them and other units too !

How to make container div "pointer-events:none" but content clickable...?

i have some setup... where tool tip appears on hover... so i have to put tool tip and anchor tags in same div... tool tips pointer events set to none.. but i cant set pointer events of container div to none because then Hover event is not detected... but i want the underlying element below tool tip to be clickable... please help me out (if possible) without java script... i have set up the dummy scenario below... also including code pen link.... and yeah... positions are not changeable...in my case the underlying div is partially visible as shown in this code below.. and i want it to be clickable/ fire alert function... yeah if there is other way by changing composition of UN-ordered list.. and separating it from that container please let me know... but tool tip should be visible on hover on switch...
<html>
<head>
<style>
.menudescription{
float: left;
width: 150px;
height: 30px;
text-align: center;
background-color: #A1BA94;
margin: 20px 0px 0px 12px;
font-size: 20px;
line-height: 25px;
font-family: 'Kaushan Script', cursive;
color: white;
border: solid white 2px;
opacity: 0;
pointer-events: none;
}
ul li {
list-style-type:none
}
#menulist{
clear: both;
width: 230px;
height: 342px;
position: fixed;
right: 0;
top: 5%;
z-index: 1000;
}
.menulistitem{
clear: both;
height: 60px;
width: 60px;
float: right;
position: relative;
text-align: center;
vertical-align: middle;
background-color: #A1BA94;
margin: 2px;
padding-top: 4px;
}
.menulistitem:hover + .menudescription{
opacity: 1;
}
.underlyingdiv{
height:200px;
width:50px;
background-color:red;
position:relative;
float:right;
margin:20px 40px;
display:block;
}
</style>
</head>
<body>
<div id="navbar">
<ul id="menulist">
<li><div class="menulistitem" id="menuitem_showreel"><a href="#">switch
</a></div> <div class="menudescription">tooltip</div></li>
<li><div class="menulistitem" id="menuitem_showreel"><a href="#">switch
</a></div> <div class="menudescription">tooltip</div></li>
<li><div class="menulistitem" id="menuitem_showreel"><a href="#">switch
</a></div> <div class="menudescription">tooltip</div></li></ul>
</div>
<div class="underlyingdiv" onClick="myfunction()"></div>
<script>
function myfunction(){
alert("hello");
}
</script>
</body>
</html>
below is the code pen link...
http://codepen.io/theprash/pen/MKwWoN
Check this out
The red container is clickable and the tooltip is visible on hover.
Things I do:
Added position:relative to li.
Removed floats to divs inside lis added below css to .menudescription
position: absolute;
right: 100%;
top: 0;
This will help to position the tooltip relative to li
Override the width of #menulist to 60px and remove padding-left for the same. This will make sure that the red container is clickable.
Working Code pen

Adjustable image on top of an another image using CSS

I would like for the image B to be fluid like the Image A, while mainlining it's center position of Image A.
Here is my sample code:
<div class="container">
<img id="imgA" src="A.png" />
<img id="imgB" src="B.png" />
</div>
CSS:
#imgA{
display: block;
width: 100%;
height: auto;
position: relative;
}
#imgB{
position: absolute;
top: 50%;
left: 50%;
margin-left: -200px;
margin-top: -100px;
width: 400px;
height: 200px;
}
With above code, I only can achieve image B to be the center of Image A while the resolution is high enough, but when it gets lower, image A will adjust to it's screen but image B remains the same. What do I need to add for image B to be fluid and be the center of image A at any resolution?
You need to calculate the offset of the second image in %, not in pixels, and make sure their sizes are relative to the container div. I created a js fiddle with an example: http://jsfiddle.net/BX6u7/
<div class="container">
<img id="imgA" src="http://placehold.it/350x150" />
<img id="imgB" src="http://placehold.it/150x50" />
</div>
and css:
.container {
margin: 0 auto;
position:relative;
width: 50%;
background-color:yellow;
}
#imgA{
display: block;
width:100%;
max-width:100%;
height:auto;
border:none;
}
#imgB{
top: 28.6%;
left: 21.6%;
width: 57%;
max-width: 57%;
border:1px solid white;
position: absolute;
}
You should not be using hard-coded px units, instead go for %.
Replace margin,width and height attributes with respective % values. '%' to be determined as per your image sizes and your requirement.

Change multiple images/elements on hover for overlayed images HTML

I created a notecard image where i overlayed multiple images on top of it. These are elements of the notecard. I want it so that when I hover over the notecard, I can completely change the contents on the notecard image (overlaying new things onto the notecard).
So right now, I have this right now:
<div style="position:relative;">
<a href="#games">
<img id "image_a" a" src="images/card_normal.png" onmouseover "this.src rc 'images/hover/card_hover.png';" ;" onmouseout "this.src rc 'images/card_normal.png';" ;" style="position: absolute; top: 0; left: 0;"/>
<img id "image_b" b" src="images/category_icons/icon_games.png" style="position: absolute; top: 10px; left: 40px;"/>
<img id "image_c" c" src="images/category_titles/title_games.png" style="position: absolute; top: 160px; left: 40px;"/>
</a>
</div>
Where the notecard changes into a "hovered" version, but I am unable to change anything else. I want it so that whenever the mouse pointer is in the notecard (including if its on other elements inside the notecard), the contents change. I want to completely scrap the contents of it (so the title and icon) and change it so I can add text and overlay new images.
How can I do this in JS/HTML/etc?
If the two versions (hover/non-hover) are significantly different (and you want a no-js solution), you could have two divs, one set to hide, one set to show. Then on-hover, you change their visibility. Fiddle.
<div class="card">
<div class="no-hover">
stuff you want to show when the user is just looking
</div>
<div class="on-hover">
stuff you want to show when the user hovers
</div>
</div>
CSS:
.no-hover {
display: block;
}
.on-hover {
display: none;
}
.card:hover > .on-hover {
display: block;
}
.card:hover > .no-hover {
display: none;
}
It's extra HTML elements, but might be easier to maintain.
Based on your comment to Learner's answer, here is an example of the idea you are describing:
HTML:
<div class="outer">
<div class="inner"></div>
<div class="inner"></div>
<div class="inner"></div>
<div class="inner"></div>
</div>
CSS:
.outer {
width: 304px;
height: 304px;
background-color: black;
}
.inner {
float: left;
width: 150px;
height: 150px;
background-color: red;
border: 1px solid black;
display: none;
}
.outer:hover .inner {
display: block;
}
DEMO
If you are trying to achieve something like this:
http://spoonfedproject.com/wp-content/uploads/demo/jquery-slide-hover/index.htm
Here's your solution:
http://www.robertkuzma.com/2011/01/jquery-animated-swap-div-content-on-hover-effect/

How do I show just one image and center it in a slider?

I'm using iosslider but can't seem to show just one image in the slider at a time. I'm also trying to center the single image shown. Here is what I have for HTML:
HTML:
<div class = 'iosSlider'>
<div class = 'slider'>
<div class="item">
<img src="/images/nature1.png" />
</div>
<div class="item">
<img src="/images/nature2.png" />
</div>
</div>
</div>
My CSS looks like this:
.iosSlider {
/* required */
position: relative;
top: 0;
left: 0;
overflow: hidden;
width: 100%;
height: 300px;
border: solid 1px #ff0000;
}
/* slider */
.iosSlider .slider {
/* required */
width: 100%;
height: 100%;
}
/* slide */
.iosSlider .slider .slide {
/* required */
float: left;
width: 100%;
height: 100%;
}
.iosSlider .slider .item img {
width: auto;
height: 300px;
border: solid 1px #00ff00;
}
I'm basically trying to show just one centered image at a time in the slider. Below is what I currently see. As you can see the image to the right is also shown.
Any idea how I can do this with my CSS?
Try resizing the window and you'll see my issue. I'm running this on a mobile webpage that has 320x480 resolution.
Give the images width/height of 100% and you can also position them absolutely:
.iosSlider .slider .item img {
width: 100%;
height: 100%;
position:absolute;
top:0;
left:0;
border: solid 1px #00ff00;
}
Ok do one thing use javascript or jQuery here to loop through your set of images.
Now add another class to the centered or focused image when jQuery function selects it like <div class = 'iosSlider'>
<div class = 'slider'>
<div class="item current">
<img src="/images/nature1.png" />
</div>
<div class="item">
<img src="/images/nature2.png" />
</div>
</div>
</div>
and when the next image got focus, remove this class "current" from 1st image and apply to 2nd one and so on.
And wrtite css for this class current liek allign: center; margin-left:auto; margin-right:auto; and other necessary css.

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