* {
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}
html {
    font-size: 62.5%;
}
body {
    background-color: #6462a9f9;
}
h1 {
    font-family: fantasy;
    font-size: 4rem;
    text-align: center;
    padding-top: 2rem;
    color: rgb(228, 200, 254);
}
.main-container {
    display: flex;
    justify-content: center;
}
.board {
    width: 350px;
    height: 350px;
    display: grid;
}
.options {
    margin: 4rem;
}
.buttons {
    margin: 0 auto;
    max-width: 672px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}
.buttons button {
    font-size: 1.8rem;
    width: 10rem;
    height: 3rem;
    background-color: purple;
    color: white;
    border-radius: 10px;
    box-shadow: 5px 5px 15px -2px #000000;
    transition-duration: 0.4s;
    border: none;
}
.buttons button:hover {
    background-color: white;
    color: black;
    cursor: pointer;
}
.changeSizeSection {
    text-align: center;
}
.changeSizeSection input {
    max-width: 50rem;
    min-width: 360px;
    height: 5rem;
}   
.littleBlock {
    transition: 0.3s ease-in-out;
}

@media (min-width: 530px) {
    .board {
        width: 500px;
        height: 500px;
    }
}