style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins&family=Ubuntu&display=swap');
*{
    font-family: 'Ubuntu';
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 62.5%;
}

:root{
    --background-color: #8c52ff;
    --timer-text-color: #8c52ff;
}

body{
    background: #8c52ff;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 3rem;
}

.container{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 3rem;
    border-radius: 2rem;
    background-color: #fff;
    height: 50%;
    width: 60%;
    min-width: 50rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.338);
}

.lap_container{
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2rem;
    border-radius: 2rem;
    background-color: #fff;
    height: 30%;
    width: 30%;
    padding: 1.5rem 2rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.338);
}

.lap_container .laps{
    padding: 0;
    padding-right: 3rem;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-direction: column-reverse;
    gap: 1rem;
    overflow-y: scroll;
}

.activelaps{
    display: flex;
}

.lap_container .laps li{
    user-select: none;
    color: #8c52ff;
    font-size: 2rem;
}

#clearlaps{
    cursor: pointer;
    user-select: none;
    font-size: 1.5rem;
    border: 2px solid #8c52ff;
    border-radius: .7rem;
    padding: .5rem 5rem;
}

#clearlaps:hover{
    color: #fff;
    background: #e35209;
}

#clearlaps:active{
    transform: scale(1.06);
}

.timer-display{
    padding: 4rem;
    text-align: center;
    position: relative;
    color: #8c52ff;
    width: 90%;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 0 20px rgba(111, 0, 255, 0.511);
    font-size: 5rem;
}

.buttons{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: row;
    gap: 2rem;
    width: 90%;
}

.buttons button{
    width: 20rem;
    height: 4rem;
    background-color: #8c52ff;
    font-size: 2rem;
    color: #fff;
    border: none;
    border-radius: .6rem;
    cursor: pointer;
    outline: none;
}

.buttons button:nth-child(2){
    background-color: #e35209;
}
.buttons button:nth-child(1){
    background-color: #f7df1e;
}

.buttons button:hover{
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}