.app {
    height: 100vh;
    background: linear-gradient(135deg,#2396ef,#4470ef);
    overflow: hidden;
    color: #fff;
}
.container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
h2 {
    margin: 15px 0;
}
.total {
    margin-bottom: 30px;
    font-size: 20px;
}
.class-cup {
    width: 150px;
    height: 350px;
    border: 4px solid #072a94;
    border-bottom-left-radius: 28px;
    border-bottom-right-radius: 28px;
    color: #1263a1;
    background: linear-gradient(135deg,#f1f2f3 10%,#ffffff 90%);
    overflow: hidden;
}
.class-cup > .remind,.class-cup > .percent {
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all .3s linear;
    flex-direction: column;
}
.class-cup > .remind > .cup-total {
    font-weight: 700;
    font-size: 22px;
}
.class-cup > .remind > span:not(.cup-total){
    font-size: 15px;
}
.class-cup > .percent {
    background: linear-gradient(135deg,#96cef8 90%,#b6c9db 10%);
    color: #0951af;
}
p {
    margin:1em 0;
    font-size: 14px;
    letter-spacing: 2px;
}
.select-cup {
    display: flex;
    flex-direction: column;
    width: 350px;
}
.select-cup > .row {
    margin: 10px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}
.select-cup > .row > .cup {
    width: 50px;
    height: 100px;
    border: 4px solid #072a94;
    border-bottom-left-radius: 28px;
    border-bottom-right-radius: 28px;
    background: linear-gradient(135deg,#f1f2f3 10%,#ffffff 90%);
    margin:0 15px;
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all .3s linear;
    color: #072a94;
    user-select: none;
}
.select-cup > .row > .cup.active {
    color: #fff;
    background: linear-gradient(135deg,#96cef8 90%,#b6c9db 10%);
}