style.css

img {
    max-width: 100%;
    box-sizing: content-box;
    background-color: #fff;
    border-style: none;
}
.avatar {
    text-align: center;
}
.avatar img{
    width: 300px;
    height: 300px;
    float: right;
    padding-left: 20px;
    transition: all .8s;
}
@media screen and (max-width: 600px) {
    .avatar img{
        width: 200px;
        height: 200px;
        padding-left: 0;
        border-radius: 50%;
        float: none;
        margin: auto;
    }
}
.container {

    max-width: 1012px;
    margin-right: auto;
    margin-left: auto;
    font-size: 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.5;
    word-wrap: break-word;

    padding-right: 16px !important;
    padding-left: 16px !important;

    margin-top: 32px !important;
    margin-bottom: 32px !important;
}

a {
    color: #0366d6;
    text-decoration: none;
}

a {
    background-color: transparent;
}

a:hover {
    text-decoration: underline;
}

a:active, a:hover {
    outline-width: 0;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 24px;
    margin-bottom: 16px;
    font-weight: 600;
    line-height: 1.25
}

h1 .octicon-link, h2 .octicon-link, h3 .octicon-link, h4 .octicon-link, h5 .octicon-link, h6 .octicon-link {
    color: #1b1f23;
    vertical-align: middle;
    visibility: hidden
}

h1:hover .anchor, h2:hover .anchor, h3:hover .anchor, h4:hover .anchor, h5:hover .anchor, h6:hover .anchor {
    text-decoration: none
}

h1 {
    padding-bottom: 0.3em;
    font-size: 2em;
    border-bottom: 1px solid #eaecef
}

h2 {
    padding-bottom: 0.3em;
    font-size: 1.5em;
    border-bottom: 1px solid #eaecef
}

h3 {
    font-size: 1.25em
}

h4 {
    font-size: 1em
}

h5 {
    font-size: 0.875em
}

h6 {
    font-size: 0.85em;
    color: #6a737d
}

hr {
    box-sizing: content-box;
    overflow: hidden;
    height: .25em;
    padding: 0;
    margin: 24px 0;
    background-color: #e1e4e8;
    border: 0;
}
hr::before {
    display: table;
    content: ""
}

hr::after {
    display: table;
    clear: both;
    content: ""
}