<div class="notification">
  Hey, want sum notifications?
  <div class="btn">Nope</div>
</div>

@import url('https://fonts.googleapis.com/css?family=Roboto');

:root{
  --acc-bounce: cubic-bezier(0.175, 0.885, 0.320, 1.275);
  --acc-sine: cubic-bezier(0.390, 0.575, 0.565, 1.000);
  --anim-duration: 500ms;
}

* {
  margin: 0px;
  padding: 0px;
  box-sizing: border-box;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  outline: 1px solid rgba(255,255,255,0);
  -webkit-tap-highlight-color: rgba(255,255,255,0);
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}


*:before,
*:after{
 content: '';
 display: block;
 background-size: contain;
 background-repeat: no-repeat;
 position: absolute;
}

html, body {
  width: 100vw;
  height: 100vh;
  font-family: 'Roboto';
  color: #fff;
  font-size: 22px;
}

body{
  display: flex;
  align-items: center;
  justify-content: center;
  background: #2e3038;
  overflow: hidden;
  perspective: 800px;
}

.notification{
/*   display: flex; */
  background: #fff;
  color: #2f2f2f;
  padding: 21px 34px;
  border-radius: 13px;
  position: relative;
  opacity: 0;
  transform: translateY(-34px);
  transition: opacity var(--anim-duration) var(--acc-sine), transform 255ms var(--acc-bounce);
  will-change: opacity, transform;
}

.displayed{
  opacity: 1;
  transform: none;
} 

.notification:before{
  content: '';
  position: absolute;
  top: -18px;
  left: 34px;
  width: 0;
height: 0;
border-style: solid;
border-width: 0 17px 21px 17px;
border-color: transparent transparent #fff transparent;
}

.btn{
  display: inline-block;
  color: #fff;
  border-radius: 21px 21px 8px 21px;
  justify-content: flex-end;
  padding: 13px 34px;
  margin: 5px 0 0 13px;
  background: #e02e2e;
  background-size: 100% 200%;
  transform-origin: bottom;
  position: relative;
  will-change: transform;
}

.btn:hover{
    background: #de1010;
}

.clicked{
  animation: slap var(--anim-duration) var(--acc-sine) 1 forwards;
  pointer-events: none;
}

@keyframes slap{
  33%{
    transform: scale(.92) rotateY(21deg) rotateX(10deg) rotateZ(1deg);
  }
  35%{
    transform: scale(.89) rotateY(-5deg) rotateX(-10deg);
  }
  67%{
    transform: scale(1.05) rotateZ(-1deg);
  }
  84%{
    transform: scale(.98); 
  }
}

.slapped:after{
  content: '😵';
  position: absolute;
  top: 0;
  right: 0;
  animation: animSlapped 800ms var(--acc-bounce) 1 forwards;
  font-size: 60px;
  will-change: opacity, transform;
}

@keyframes animSlapped{
  0%{
    transform: scale(.67) rotateZ(-1deg);
    opacity: 0;
  }
  50%{
    opacity: 1;
  }
  100%{
    transform: scale(1) translateY(-144px) translateX(5px) rotateZ(5deg);
    opacity: 0;
  }

}

.slapped:before{
  content: '💢';
  position: absolute;
  top: 0;
  left: 0;
  animation: animSlappedAlt 800ms var(--acc-bounce) 1 forwards;
  font-size: 60px;
  will-change: opacity, transform;
}

@keyframes animSlappedAlt{
  0%{
    transform: scale(.67) rotateZ(45deg);
    opacity: 0;
  }
  50%{
    opacity: 1;
  }
  100%{
    transform: scale(1) translateY(-189px) translateX(-8px) rotateZ(70deg);
     opacity: 0;
  }
}

@media (max-width: 499px){
  .notification{
    max-width: 280px;
    justify-content: space-between;
  }
  .btn{
    margin-top: 21px;
    float: right;
  }
}

var animDuration = 500;

setTimeout(function(){
  $('.notification').addClass("displayed");
}, animDuration);

$('.btn').on('click', function(){
  $('.notification').addClass("clicked");
  $('.btn').addClass("slapped");
  setTimeout(function(){
    $('.notification').removeClass("clicked");
    $('.btn').removeClass("slapped");
  }, animDuration);
});

var emojiCursor = document.createElement("canvas");
emojiCursor.width = 48;
emojiCursor.height = 48;
var context = emojiCursor.getContext("2d");
context.font = "40px 'sans serif'";
context.fillText("👋", 0, 40);
document.body.style.cursor = "url('" + emojiCursor.toDataURL() + "'), auto";