body {
    /* background-image: url('../static/img/main.JPG');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat; */
    height: 100vh;
    overflow: hidden;
}
.cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    opacity: 0.55;
    z-index: -1;
}
.background-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: -2;
}
.black-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: black;
    z-index: -3;
}
.mainContent {
    position: relative;
}

.timeout {
    font-size: 35px;
}

#countdown {
    font-size: 80px;
}

.fighting {
    font-size: 30px;
}

.mainbtn button {
    width: 180px;
    background-color: #1658D6;
    border: none;
    border-radius: 15px;
    padding: 10px 15px;
}

.mainTitle1 {
    font-size: 45px;
}

.shadow-effect {
    text-shadow: 2px 2px 5px rgba(0,0,0,0.55);
}

.btn-shadow {
    box-shadow: 7px 9px 21px 1px rgba(0,0,0,0.69);
    -webkit-box-shadow: 7px 9px 21px 1px rgba(0,0,0,0.69);
    -moz-box-shadow: 7px 9px 21px 1px rgba(0,0,0,0.69);
}

.main-btn-size {
    font-size: 20px;
}