h1{
    animation-name: cool;
    color: cornflowerblue;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 100px;
    animation-duration: 5s;
    animation-delay: 2s;
    animation-iteration-count: 1;
    position: relative;
    transition: slide;
}
@keyframes cool{
    from {left: -980px;}
    to {left: 2px;}
}

span{
    font-size: 70px;
    color: white;
}
button{
   margin-left: 10%;
    height: 300px;
   width: 300px;
    background-color: cornflowerblue;
    border-radius: 100%;
    border-color: darkblue;
    border: 20px;
    border-style: solid;
    padding: 2px;
    transform: rotate(-360deg);
    transition-delay: 0.2s;
    transition-timing-function: ease-in-out;
    transition: 0.3s;
}

button:hover{
    background-color: darkblue;
    border-color: cornflowerblue;
    border: 20px;
    border-style: solid;
    transform: rotate(360deg);
    transition-delay: 0.2s;
    transition-timing-function: ease-in-out;
    transition: 0.3s;
}