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Make Slide in Animation JavaScript and HTML

How would one make a slide and fade in animation like in seen in the green and pink boxes on sharethis.com? In particular I like the one in the blue box with the arrows. Are there a set of JavaScript codes or CSS effects?

The easiest would probably be to use a library like this:
http://janpaepke.github.io/ScrollMagic/
I see that for the arrows effect the css-height property is animated when you scroll. This is done in javascript. But you can also achieve this effect through CSS3-transitions.
Update: Slide and wipe effects from the demo page:
// ani
var pinani = new TimelineMax()
// wipe
.add(TweenMax.to("#wipe", 1, {
width: "100%"
}))
// slide
.add(TweenMax.to("#slide", 1, {
top: "0%",
ease: Bounce.easeOut,
delay: 0.2
}));
// pin
new ScrollScene({
triggerElement: "section#pin",
duration: 1100
})
.on("progress", function () {
// keep centered even though width changes
$("#wipe h3").width($("#pin>h3").width());
})
.setTween(pinani)
.setPin("section#pin")
.addTo(controller);

javascript, animate and fadeout together

I need to animate an image and fade it out at the same time.
The image is situated in the right of the page, I need to move it to the left and fade it out so that when it reaches the left it is totally disappeared. I tried to combine .fadeOut and .animate (see example below) but actually the image moves, stops and then fadeout. Can you help me?
<script>
$("#link").click(function() {
$("#image").animate({
marginLeft: "-1000px"
}, 1500).fadeOut(1600);
});
</script>
Thank you

Change the opacity of the element. By settings this to zero, the element will fadeout to the duration of the animation.
Code:
$('#link').click(function() {
$('#image').animate({
marginLeft: '-100px',
opacity: 0
}, 1500);
});
Example: http://jsfiddle.net/QqfLL/

Set opacity of #image to 0 and try this :
$("#link").click(function() {
$("#image").animate({
marginLeft: "-1000px",
opacity: 1
}, 1500);
});
You will have to check if this work correctly in IE.

Animate or scale from center

Any ideas on how to animate the width and height of a div from the top center?
Tried using effect('scale') but this is based on a show/hide so snaps back after completion.
Then tried a normal animate:
$('.box').animate({'width':200px,'height':200px,margin-left:-100px});
This works, but as there is a line of .box, I want the others to react and push to one side.

Fine Tuned
FIDDLE
$('.day').hover(function() {
if($(this).index()==0){
$(this).animate({'width':400,'height':400}, 500);
}else{
$(this).animate({'width':400,'height':400}, 500);
$(this).parent().stop().animate({'margin-left':'-100'} , 500);
}
}, function() {
$(this).animate({'width':200,'height':200}, 500);
$(this).parent().stop().animate({'margin-left':'0'}, 500);
});

Maybe like this:
$('.day').hover(function() {
$(this).animate({'width':400,'height':400, 'margin':'-100px -90px'});
}, function() {
$(this).animate({'width':200,'height':200, 'margin': '0 10px'});
});
Fiddle: http://jsfiddle.net/dmYY3/3/ ?

fadeOut() and slideUp() at the same time?

I have found jQuery: FadeOut then SlideUp and it's good, but it's not the one.
How can I fadeOut() and slideUp() at the same time? I tried two separate setTimeout() calls with the same delay but the slideUp() happened as soon as the page loaded.
Has anyone done this?

You can do something like this, this is a full toggle version:
$("#mySelector").animate({ height: 'toggle', opacity: 'toggle' }, 'slow');
For strictly a fadeout:
$("#mySelector").animate({ height: 0, opacity: 0 }, 'slow');

Directly animating height results in a jerky motion on some web pages. However, combining a CSS transition with jQuery's slideUp() makes for a smooth disappearing act.
const slideFade = (elem) => {
const fade = { opacity: 0, transition: 'opacity 400ms' };
elem.css(fade).slideUp();
};
slideFade($('#mySelector'));
Fiddle with the code:
https://jsfiddle.net/00Lodcqf/435
In some situations, a very quick 100 millisecond pause to allow more fading creates a slightly smoother experience:
elem.css(fade).delay(100).slideUp();
This is the solution I used in the dna.js project where you can view the code (github.com/dnajs/dna.js) for the dna.ui.slideFade() function to see additional support for toggling and callbacks.

The accepted answer by "Nick Craver" is definitely the way to go. The only thing I'd add is that his answer doesn't actually "hide" it, meaning the DOM still sees it as a viable element to display.
This can be a problem if you have margin's or padding's on the 'slid' element... they will still show. So I just added a callback to the animate() function to actually hide it after animation is complete:
$("#mySelector").animate({
height: 0,
opacity: 0,
margin: 0,
padding: 0
}, 'slow', function(){
$(this).hide();
});

It's possible to do this with the slideUp and fadeOut methods themselves like so:
$('#mydiv').slideUp(300, function(){
console.log('Done!');
}).fadeOut({
duration: 300,
queue: false
});

I had a similar problem and fixed it like this.
$('#mydiv').animate({
height: 0,
}, {
duration: 1000,
complete: function(){$('#mydiv').css('display', 'none');}
});
$('#mydiv').animate({
opacity: 0,
}, {
duration: 1000,
queue: false
});
the queue property tells it whether to queue the animation or just play it right away

Throwing one more refinement in there based on #CodeKoalas. It accounts for vertical margin and padding but not horizontal.
$('.selector').animate({
opacity: 0,
height: 0,
marginTop: 0,
marginBottom: 0,
paddingTop: 0,
paddingBottom: 0
}, 'slow', function() {
$(this).hide();
});

How to make a continuous scroll with JQuery?

I have this site I am developing - I made the scroller with the following code:
$(document).ready(function()
{
function scrollIt()
{
$('#featured-brands div#scroll').animate({
marginLeft: "-4550px"}, 85000, "linear").animate({
marginTop: "-223px" }, 200, "linear").animate({
marginLeft: "750px" }, 100, "linear").animate({
marginTop: "57px" }, 1, "linear", scrollIt);
}
scrollIt();
});
When the final image is sliding across, there is a white blank space visible, how would I make the first image appear right after the final image, so there is no white space?
Cheers,
Keith

split it into two. When one goes off the bottom, move it so it's above the other.