html 

body {
    background: rgba(255, 253, 251, 0.4);
    box-shadow: 0 0 0 rgba(0, 0, 0, 0.06);
    color: #000000;
    
    font-family: "Helvetica";
    font-size: 12px;
    line-height:inherit;
    margin: 0 auto;
    max-width: 800px;
    padding: 2em 2em 4em;
}
header {
    
    flex-direction: row;
    justify-content: center;
    align-content: center;
    align-items: center;
    display: flex;
    margin: 0 0 7em 0;
    max-width: 200%
    
}
main img {
    max-height: inherit;
    max-width: 70%;
    align-content: right;
    display: flex;
    margin: auto;
    border-radius: 50%;
    flex-flow: row;
    
}
nav ul li {
    background-color: orange;
    list-style: none;
    flex-direction: row;
    justify-content:center;
    align-content: center;
    display:flex;
    font-size: 2em;
    margin: 0.2em 0 0 0;
    height: 1.5em;
    padding-top: 0.2em;
    padding-bottom: 0.2em;
    text-align:center;

    }
nav ul li a:hover {
    color: black;
}

h1 {
    color: black;
    font-size: 3em;
    display: flex;
    flex-direction: row;
    align-content: space-around;
    justify-content: space-around;
    margin: 2em 0em 0em 0em;
    display: flex;
}
h2 {
    color: #ff9d00;
    font-size: 2em;
    display: flex;
    flex-direction: row;
    align-content: space-around;
    justify-content: space-around;
    margin: 0.3em 0em 2em 0em;
    display: flex
}


a {
    color: rgb(255, 255, 255);
    font-style: italic;
    text-decoration:none
}

b, strong {
    font-weight: 700;
}

header img {
    animation: colorize 2s cubic-bezier(0, 0, .78, .36) 1;
    background: transparent;
    border: 0px solid rgba(0, 0, 0, 0.12);
    border-radius: 4px;
    display: flex;
    margin: 1.3em auto;
    max-width: 100%;
}
    
}
@keyframes colorize {
    0% {
        -webkit-filter: grayscale(100%);
        filter: grayscale(100%);
    }
    100% {
        -webkit-filter: grayscale(0%);
        filter: grayscale(0%);
    }
    footer {
        align-content: center;
        font: rgb(211, 211, 211);
        color: 
    
    }

}
footer {
    color: #8e8d8d;
    font-style: oblique;
    margin: 4em 2em 0em 1em;
    align-content: center;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}