html {
    display: table;
    width: 100%;
}

body {
    display: table-cell;
    vertical-align: middle;
    text-align: center;
    background-color: #0e0e0e;
    background-image: url("noise.png");
}

body,
html {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.btn-wrapper{
    text-align: center;
    width: 100%;
    position: absolute;
    top: 50%;
}

.btn {
    font-size: 57px;
    font-weight: bolder;
    font-family: sans-serif;
    outline: none;
    border: none;
    padding: 8px 16px;
    color: #000;
    text-shadow: 1px 1px 0px #fff;
    background-color: #00f078;
    background-image: linear-gradient(#01cb67, #00f078);
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.15s ease-out;
}
.btn:hover {
    transform: scale(1.5);
    background-image: linear-gradient(#02b65d, #03de6f);
}
.btn:active {
    transform: scale(1.2);
    opacity: 0.5;
}

audio {
    position: absolute;
    width: 0;
    height: 0;
    visibility: hidden;
}

.doge{

}