styles.css

html {
    overflow-y: scroll;
    color: rgb(69, 62, 75);
}

body {
    text-align: center;
    font-family: 'Joti One', 'Open Sans', sans-serif;
    border: 6px solid rgb(69, 62, 75);
    margin: 0;
}

h1 {
    font-size: 50px;
    margin: 0.2em;
}

table,
tr,
td {
    border: 1px solid black;
}

table {
    border-collapse: collapse;
    margin: 0 auto;
    max-width: 96%;
}

tr {
    height: 20px;
}

td {
    width: 20px;
}

input[type=number] {
    width: 3em;
    margin-left: 5px;
}

button {
    font-family: 'Open Sans', sans-serif;
    background-color: rgb(255, 249, 221);
    border-radius: 30px;
    border: 2px solid rgb(69, 62, 75);
}

.builder {
    width: 300px;
    display: flex;
    justify-content: space-around;
}

.builder button {
    width: 80px;
    height: 30px;
}

.builder div {
    width: 60px;
    margin-right: 5px;
}

.controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 0 2% 15px 2%;
    background-color: rgb(207, 233, 207);
    border: 2px solid rgb(69, 62, 75);
}

.controls > * {
    margin: 0.5em;
}

#create-grid,
#reset,
#clear-grid {
    width: 120px;
}

#reset {
    margin-top: 10px;
}

#color-picker {
    height: 50px;
    width: 50px;
    margin-bottom: 10px;
}

footer {
    font-family: 'Open Sans', sans-serif;
    margin: 20% 5px 20px 5px;
    font-size: 0.8em;
}

footer a {
    text-decoration: none;
}


@media screen and (max-width: 780px){
    h1 {
        font-size: 40px;
    }
}

@media screen and (max-width: 350px){
    h1 {
        font-size: 30px;
    }

    .builder {
        flex-direction: column;
        width: 70%;
        align-items: center;
    }

    .builder button {
        margin: 5px;
    }
}