* {
    margin: 0px;
    padding: 0px;
    list-style: none;
}

body {
    background: url(../images/叶子6.JPG);
}

a {
    text-decoration: none;
}

#logo {
    width: 300px;
    overflow: hidden;
    margin-left: 350px;
}

#logo img {
    width: 300px;
    height: 72;
}

#title {
    position: relative;
    width: 1000px;
    margin: 0 auto;
    height: 72px;
}

#login {
    position: absolute;
    right: 0px;
    top: 0px;
    line-height: 70px;
}

#login a {
    margin-left: 20px;
    color: #3BB25A;
}

#login a:hover {
    font-weight: bold;
}

nav {
    width: 1000px;
    margin: 0 auto;
    background-color: #3BB25A;
    height: 40px;
}

nav ul {
    width: 1000px;
    display: flex;
}

nav ul li {
    width: 110px;
    line-height: 40px;
    text-align: center;
}

nav ul li a {
    color: #ffff;
}

nav ul li:hover {
    background-color: #0A8102;
}

#banner {
    width: 1000px;
    margin: 0 auto;
    font-size: 0px;
}

#banner img {
    width: 1000px;
    height: 400px;
}

#main {
    width: 960px;
    margin: 0 auto;
    background-color: rgb(235, 230, 230);
    padding: 20px;
}

#main p {
    line-height: 32px;
    text-indent: 32px;
}

h1 {
    text-align: center;
    color: #3BB25A;
}

#main_img {
    width: 400px;
    margin-left: 300px;
    margin-top: 20px;
    margin-bottom: 20px;
}

footer {
    width: 1000px;
    margin: 0 auto;
    height: 32px;
    line-height: 32px;
    text-align: center;
    color: #fff;
    background-color: #0A8102;
    font-size: 12px;
}

table {
    width: 800px;
    margin: 0 auto;
    margin-top: 30px;
    line-height: 32px;
}

table caption {
    text-align: center;
    font-size: 20px;
    margin-bottom: 30px;
}

#register {
    text-align: left;
    box-sizing: border-box;
    padding-left: 150px;
    font-size: 14px;
}

#register input,
textarea {
    margin-left: 5px;
}

#register div {
    padding-top: 15px;
}

#register div span {
    display: inline-block;
    width: 90px;
    text-align: justify;
    text-justify: distribute-all-lines;
    text-align-last: justify;
}

#techang textarea {
    width: 300px;
    height: 70px;
}

#techang {
    display: flex;
    line-height: 70px;
}