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

html,body{
    width: 100%;
    height: 100%;
}

#back{
    width: 100%;
    height: 100%;
   display: flex;
   align-items: center;
   justify-content: center;
   text-align: center;
   transition: all 0.5s ease-in-out;
}

button{
    padding: 15px 40px;
    border: none;
    border-radius: 200px;
    cursor: pointer;
    letter-spacing: 3px;
    font-weight: 500;
    margin: 15px ;
}

#light{
    background-color: white;
    color: black;
}

#dark{
    background-color: black;
    color: white;
}

h1{
    font-size: 56px;
    letter-spacing: 5px;
}