* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

.background {
    height: 100vh;
    width: 100vw;
    background: url("images/b.jpeg") no-repeat center center fixed;
    background-size: cover;
    
}
.bird{
    height: 100px;
    width: 130px;
    position: fixed;
    top: 40vh;
    left: 30vw;
    z-index: 100;
}
.pipe_sprite{
    position: fixed;
    top: 40vh;
    left: 100vw;
    height: 70vh;
    width: 6vw;
    background: radial-gradient(rgb(117, 207, 131) 50%, rgb(164, 164, 180));
    border: 5px solid black;
}
.message{
    font-size: x-large;
    position: absolute;
    z-index: 10;
    color: black;
    top: 30%;
    left: 50%;
    transform: translate(-50% , -50%);
    text-align: center;
}
.messageStyle{
    background: white;
    padding: 30px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
    border-radius:5%;
}
.score{
    position: fixed;
    z-index: 10;
    height: 10vh;
    font-size: 10vh;
    font-weight: 100;
    color: black;
    -webkit-text-stroke-width: 2px;
    -webkit-text-stroke-color: azure;
    top: 0;
    left: 0;
    margin: 10px;
}
.score_val{
    color: gold;
    font-weight: bold;
}
@media screen and (max-width : 880px){
.message{
    font-size: 20px;
    top: 50%;
    white-space: nowrap;
}
.score{
    font-size: 5vh;
}
.bird{
    width: 120px;
    height: 90px;
}
.pipe_sprite{
    width: 14vw;
}
}