style.css

* {
    margin: 0;
    text-align: center;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
}

body {
    background-color: wheat;
}

#heading {
    font-size: 50px;
    padding: 20px;
    color: yellowgreen;
    font-weight: bolder;
    background-color: black;
}

@media(max-width:500px) {
    #heading {
        font-size: 30px;
    }
}

.head2 {
    margin: 2rem;
    color: red;
    font-size: 29px;
    text-shadow: 0px 0px 2px rgb(0, 0, 0);
}

/* Grid Container for buttons CSS */
.container {
    display: grid;
    grid-template-columns: auto auto;
    height: fit-content;
    width: fit-content;
    margin: 50px auto;
    margin-bottom: 40px;
}

/* Buttons CSS */
.btn {
    width: 10rem;
    height: 10rem;
    margin: 5px;
    border-radius: 10%;
    border-bottom: 5px solid;
    border-right: 5px solid;
    border-color: rgb(7, 99, 116);
    cursor: pointer;
}

/* Buttons Start */

.red {
    background-color: red;
}

.green {
    background-color: yellowgreen;
}

.blue {
    background-color: blueviolet;
}

.yellow {
    background-color: yellow;
}

/* Simon button Ends */


/* Start and Rules Button CSS */
.gameBtn {
    font-size: 1.4rem;
    font-weight: 800;
    background-color: black;
    color: white;
    border-radius: 0.5rem;
    width: 7rem;
    height: 4rem;
    border: 3.5px solid rgb(0, 0, 0);
    margin: 1rem 1rem;
    margin-bottom: 100px;
    cursor: pointer;
}

.gameBtn:hover {
    background-color: yellow;
    color: black;
}

#rules:hover {
    background-color: rgb(64, 4, 69);
    color: white;
}

.rulesList {
    display: flex;
    flex-direction: column;
    list-style-type: upper-roman;
    justify-content: center;
    align-items: center;
}

.rulesList li {
    flex-wrap: wrap;
    padding: 12px;
    padding-left: 7px;
    font-size: 18px;
}

/* Footer CSS */
#footer {
    background-color: black;
    color: white;
    margin: 0;
    padding: 20px;
    width: 100%;
    height: fit-content;
    position: fixed;
    bottom: 0;
}

/*  Game Dynamics CSS */
.flash {
    background-color: rgb(255, 254, 254);
}

.userflash {
    background-color: aquamarine;
}

.stepsCon {
    display: none;
}

.steps {
    display: block;
    font-size: 24px;
    padding: 4px;
    font-weight: 800;
}