JSFiddle - React, Tailwind, and code Playground

HTML

<div class="header">
<h1>С наступающими праздниками!</h1>
<div class="wrapper">
    <div class="christmas-tree tree1"></div>
    <div class="christmas-tree tree2"></div>
    <div class="christmas-tree tree3"></div>
    <div class="snowman"></div> 
    <div class="christmas-tree tree4"></div>
    <div class="christmas-tree tree5"></div>
    <div class="christmas-tree tree6"></div>
</div>

CSS

body{
      margin: 0;
}

.header{
    margin: 20px auto;
    width: 960px;
    background: url(http://s017.radikal.ru/i424/1311/6e/d7edf22bab37.png);
    background: url(http://s020.radikal.ru/i705/1311/ff/bb57f7dbd3c7.png) repeat-y center,
    url(http://s017.radikal.ru/i424/1311/6e/d7edf22bab37.png);
    -webkit-animation: animate-snow 9s linear infinite;
    -moz-animation: animate-snow 9s linear infinite;
    -ms-animation: animate-snow 9s linear infinite;
    animation: animate-snow 9s linear infinite;     
}

@font-face {
  font-family: 'Marck Script';
  font-style: normal;
  font-weight: 400;
  src: local('Marck Script'), local('MarckScript-Regular'),
  url(http://themes.googleusercontent.com/static/fonts/marckscript/v4/O_D1NAZVOFOobLbVtW3bcoraN7vELC11_xip9Rz-hMs.woff) format('woff');
}

h1{
    color: white;
    text-align: center;
    position: absolute;
    top: 10px;
    left: 0;
    right: 0;
    font-family: 'Marck Script', cursive;
    font-size: 3em;
}

@-webkit-keyframes animate-snow
{
    0% { background-position: center 0, 0 0;}
    100% { background-position: center 885px, 0 0;}
}

@-moz-keyframes animate-snow
{
    0% { background-position: center 0, 0 0;}
    100% { background-position: center 885px, 0 0;}
}

@-ms-keyframes animate-snow
{
    0% { background-position: center 0, 0 0;}
    100% { background-position: center 885px, 0 0;}
}       

@keyframes animate-snow
{
    0% { background-position: center 0, 0 0;}
    100% { background-position: center 885px, 0 0;}
}   

.wrapper{
    width: 960px;
    height: 315px;
    margin: auto;
    overflow: hidden;
    position: relative;
    background: url(http://i024.radikal.ru/1311/f9/11216ca37fc6.png) no-repeat bottom;
}   

@-moz-keyframes animate-drop {
   
    0% {opacity:0;-moz-transform: translate(0, -315px);}
    100% {opacity:1;-moz-transform: translate(0, 0);}
}

@-webkit-keyframes animate-drop {
   
    0% {opacity:0;-webkit-transform: translate(0, -315px);}
    100%...