#wrapper {
    position: relative;
    text-align: center;
    margin-top: 100px;
    width: 40%;
    left: 400px;
}

.start {
    text-align: center;
  }

button {
    background-color: #4b2e83;
    color: white;
    border-radius: 5px;
}

button:hover {
    background-color: blueviolet;
}

/* 
#rightOrwrong {
    -moz-animation: cssAnimation 0s ease-in 3s forwards; */
    /* Firefox */
    /* -webkit-animation: cssAnimation 0s ease-in 3s forwards; */
    /* Safari and Chrome */
    /* -o-animation: cssAnimation 0s ease-in 3s forwards; */
    /* Opera */
    /* animation: cssAnimation 0s ease-in 3s forwards;
    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;
} */

#Time-Display {
    margin-right: auto;
    margin-left: auto;
}

.hide {
    display: none;
}

/* @keyframes cssAnimation {
    to {
        width:0;
        height:0;
        overflow:hidden;
    }
}
@-webkit-keyframes cssAnimation {
    to {
        width:0;
        height:0;
        visibility:hidden;
    } */