* {
    padding: 0;
    margin: 0;
    font-family:"Times New Roman",Times,serif;
    }
body{
        background-color: black;
        color: rgb(255, 255, 255);
        transition: 0.5s linear;
    }
.body {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    border-radius: 40px;
    }
    
.topic{
    font-size: 3.2vw;
    text-align: center;
}
.timer{
    font-size: 10.25vw;
    text-align: center;
}
.SetStyle{
    position: fixed;
    bottom:0px;
    right: 0px;
    width:auto;
    background-color: transparent;
    height:auto;
    display: flex;
    justify-content: center;    
    align-items: center; 
    padding-bottom:10px;
    padding-right:10px;
}
.SetStyleA{
    position: relative;
    bottom:15px;
    right: 15px;
    width: 100px;
    background-color: rgb(187 187 187 / 30%);
    height:50px;
    border-radius:100px;
    display: flex;
    align-items: center; 
    transition: 0.5s linear;
    cursor: pointer;
}
.SetStyleB{
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 100%;
    background-color: rgb(255 255 255 / 80%);
    left:6%;
    transition: 0.5s linear;
    color: black;
    font-size: 20px;
    font-weight: bold;
    display: flex;
    justify-content: center;    
    align-items: center; 
    box-shadow: 0px 0px 5px rgb(50, 50, 50);
}
div{
    font-family:"Times New Roman",Times,serif;
}
@media (max-width:1000px) {
    .topic{
        font-size: 4.2vw;
        text-align: center;
    }
    .timer{
        font-size: 11vw;
        text-align: center;
    }
    .SetStyleA{
        width: 80px;
        height:45px;
    }
    .SetStyleB{
        width: 35px;
        height: 35px;
    }
}