body {
    overflow: hidden;
    background-color: #eee;
}
.rocket {
    position: absolute;
    height: 50px;
    width: 50px;
    border: 2px solid black;
    background-color: rgb(100,200,50);
}

.particle {
    position: absolute;
    height: 20px;
    width: 20px;
    border: 3px dashed black;
    z-index: 0;

}

.launch {
    position: fixed;
    left: 50%;
    top: 60%;
    transform: translateX(-50%) translateY(-50%);
    border: 2px solid #111;
    background-color: #349;
    color: #eee;
    height: 60px;
    width: 150px;
    border-radius: 9px;
    font-size: 16px;
    font-family: Verdana; 
    cursor: pointer;
    box-shadow: 0px 5px 1px #111;
    transition: all .3s;
    -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Safari */
    -khtml-user-select: none; /* Konqueror HTML */
    -moz-user-select: none; /* Old versions of Firefox */
    -ms-user-select: none; /* Internet Explorer/Edge */
    user-select: none; /* Non-prefixed version, currently */
              
}

.launch:active {
    top: 61%;
    box-shadow: 0px 2px 1px #111;

}

.launch:focus {
    outline: 0;
}
.footer {
    background-color: rgb(100,200,50);
    background-color: #349;
    border: 3px solid black;
    height: 10vh;
    width: 100vw;
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 10;
}