style.css

:root{
    --color: #008b8b;
}

body{
    font-family: 'Oswald', 'Helvetica';
    background-color:rgb(238, 238, 238);
    margin: 0;
}

#navbar{
    text-align: center;
    font-size: 48px;
    background-color: var(--color);
    padding: 10px 0;
    color: white;
} 

.container{
    display: flex;
    flex: 1 0 auto;
    align-items: center;
}

#options{
    display: flex;
    flex-direction: column;
    justify-content:space-between;
    margin: 0 auto;
    gap: 50px;
    font-size: 24px;
    text-align: center;
}

#colorPicker{
    all: none;
    margin:0;
    border:none;
    -webkit-box-shadow: none;
    -moz-box-shadow: none;
    box-shadow: none;
    padding:0;
    width: 275px;
    height: 80px;
}

#sizeAndColor{
    display:flex;
    flex-direction: column;
    justify-content: center;
}

button{
    width: 275px;
    height: 80px;
    font-size: 24px;
    font-family: 'Oswald';
    background-color: rgb(238, 238, 238);
    box-shadow: none;
    border: black solid 1px;
}   

button:hover{
    background-color: var(--color);
}

#grid{
    width: 700px;
    height: 700px;
    display: grid;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    margin: 40px 0;
    margin-right: auto;
}

.gridElement{
    background-color: white;
    display: inline-block;
}