html {
    background: #7fffd4;
   <!-- background-image: url("https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSS7Iv4l9jPiv2onvkkNNR4vG5xt5mlE_t-U226qXLOTuuvc7Je&s")    need to figure out how to put image in css not html-->
    <!-- background-image: linear-gradient(270deg, rgb(230, 233, 233) 0%, rgb(216, 221, 221) 100%);
    -webkit-font-smoothing: antialiased;-->
}
<!-- This is the dark gray color we are using for text: #262626 -->


body {
    
       <!-- box-shadow: 0 0 2px rgba(0, 0, 0, 0.06); -->
    color: #262626;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    margin: 0 auto;
    max-width: 800px;
    padding: 2em 2em 4em;
}

h1, h2, h3, h4, h5, h6 {
    color: #262626;
    font-weight: 600;
    line-height: 1.3;
}

h2 {
    margin-top: 1.3em;
}

h1 {padding-top: 50px;
    padding-right: 250px;
    padding-bottom: 50px;
    padding-left: 250px;
}

h3 {
    text-align: center;
}

p {
    color:#262626;
    font-family: verdana;
    font-size: 24px;
}

a {
    color: #262626;
}

b, strong {
    font-weight: 600;
}

samp {
    display: none;
}

img {
    animation: colorize 2s cubic-bezier(0, 0, .78, .36) 1;
    background: transparent;
    border: 10px solid rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    display: block;
    margin: 1.3em auto;
    max-width: 95%;
}

@keyframes colorize {
    0% {
        -webkit-filter: grayscale(100%);
        filter: grayscale(100%);
    }
    100% {
        -webkit-filter: grayscale(0%);
        filter: grayscale(0%);
    }
}