<body>
<h1>This is a CSS styled Heading</h1>
<p id="rcorners">Rounded corners!</p>
  <button class="button">HOVER OVER</button>
  <div></div>
</body>
body {
    background-color: #d0e4fe;
}

h1 {
    color: teal;
    text-align: center;
}

p {
    font-family: "Times New Roman";
    font-size: 20px;
    color:#009688;
}

#rcorners {
    border-radius: 10px;
    color: white;
    background: #E91E63;
    padding: 10px; 
    width: 150px;
    height: 25px;
}

.button {
    background-color: white; 
    color: black; 
    border: 2px solid #CDDC39;
    padding: 16px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
    box-shadow: 0 8px 16px 0   rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
}

.button:hover {
    background-color: #CDDC39;
    color: white;
}

div {
    width: 100px;
    height: 100px;
    background-color: red;
    position: relative;
    -webkit-animation-name: example; /* Chrome, Safari, Opera */
    -webkit-animation-duration: 4s; /* Chrome, Safari, Opera */
    -webkit-animation-iteration-count: 3; /* Chrome, Safari, Opera */
    -webkit-animation-direction: alternate; /* Chrome, Safari, Opera */
    animation-name: example;
    animation-duration: 4s;
    animation-iteration-count: 3;
    animation-direction: alternate;    
}

/* Chrome, Safari, Opera */
@-webkit-keyframes example {
    0%   {background-color:red; left:0px; top:0px;}
    25%  {background-color:yellow; left:200px; top:0px;}
    50%  {background-color:blue; left:200px; top:200px;}
    75%  {background-color:green; left:0px; top:200px;}
    100% {background-color:red; left:0px; top:0px;}
}

/* Standard syntax */
@keyframes example {
    0%   {background-color:red; left:0px; top:0px;}
    25%  {background-color:yellow; left:200px; top:0px;}
    50%  {background-color:blue; left:200px; top:200px;}
    75%  {background-color:green; left:0px; top:200px;}
    100% {background-color:red; left:0px; top:0px;}
}
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