styles.css

body, html
{
    font-family: 'Times New Roman', Times, serif;
    min-width: 1218px;
}

.overlay 
{ 
    height: 100%;
    width: 0;
    position: fixed; /* Stay in place */
    z-index: 1; /* Sit on top */
    left: 0;
    top: 0;
    background-color: rgb(0,0,0);
    background-color: rgba(0, 0, 0, 0.9);
    overflow-x: hidden; /* Disable horizontal scroll */
    transition: 0.2s; 
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}


.overlay a 
{
    padding: 20px;
    margin: 20px;
    text-decoration: none;
    font-size: 32px;
    color: #ffffff;
    border-radius: 33px;
    display: block;
    transition: 0.3s; /* Transition effects on hover (color) */
}

.mopedOptions, .carOptions
{
    display: none;
    width: 100%;
}

#carColumn1, #carColumn2, #mopedRow, .overlay-content
{
    display: flex;
    justify-content: center;
    width: 0%;
    -webkit-animation: slide 0.2s linear forwards;
    animation: slide 0.2s linear forwards;
}

.button
{
    text-align: center;
    background-color: #E14730;
    width: 25%;
}

.button:hover, .button:focus
{
    background-color: #c0321c;
}

#closeBtn 
{
    position: absolute;
    top: 5%;
    right: 5%;
    font-size: 70px;
}

#closeBtn:hover, #closeBtn:focus
{
    color: #747474;
}

#returnBtn
{
    display: none;
    padding: 10px;
    border: 2px solid white;
}

#returnBtn:hover, #returnBtn:focus
{
    background-color: #ffffff1c;
}

#openBtn
{
    color: #ffffff;
    background-color: #E14730;
    border: none;
    border-radius: 33px;
    padding: 15px 60px;
}

strong
{
    text-align: center;
    color: #ffffff;
    font-size: 60px;
}

@-webkit-keyframes slide
{
    0% {width: 0%;}
    100% {width: 100%;}
}

@keyframes slide
{
    0% {width: 0%;}
    100% {width: 100%;}
}

@media screen and (max-height: 450px), screen and (max-width: 900px) 
{
    .overlay a {font-size: 25px}
    .overlay #closeBtn 
    {
      font-size: 55px;
    }
}