* {
    font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}
body {
    max-width: 1000px;
    margin: 0 auto;
}
.main {
    padding: 20px;
}
h4 {
    color: green;
}
h3, h4, a, thead{
    font-family: "Courier New";
}
h1,
h2,
h4,
.header {
    text-align: center;
}
.header__sub-title {
    color: rgb(104, 104, 104);
}
.header__navigation a {
    color: green;
    margin: 10px;
}
.about {
    max-width: 690px;
    display: inline-block;
}
summary {
    max-width: 500px;
    display: inline-block;
}
ul, .main__img {
    display: inline-block;
}
.main__img img{
    width: 180px;
}
mark {
    background: white;
    font-weight: 600;
}
img {
    /* width: 350px; */
    width: 250px;
}
#skills, form, #contacts {
    margin: 0 160px;
}
address a {
    display: block;
}
.footer {
    text-align: center;
}
a {
    color: green;
}
th, tr, td {
    padding: 15px;
}
tbody tr:nth-child(2n + 1) {
    background: rgba(218, 239, 218, 0.694);
}
label {
    display: block;
    margin-bottom: 10px;
}
textarea {
    display: block;
    width: 100%;
}
form {
    width: 400px;
}