index.css

/*导航栏*/
#nav-left {
    font-size: 13px;
    float: right;
    font: 13px 'PingFang SC', Arial, 'Microsoft YaHei', sans-serif;
    position: absolute;
    top: 22px;
    left: 24px;
}

#nav-left a {
    color: black;
    margin-right: 15px;
    text-decoration: none;
}

#nav-left a:hover {
    color: #0000FF;
}

#nav-right {
    font-size: 13px;
    float: right;
    font: 13px 'PingFang SC', Arial, 'Microsoft YaHei', sans-serif;
    position: absolute;
    top: 22px;
    right: 24px;
}

#nav-right a {
    color: black;
    margin-right: 15px;
    text-decoration: none;
}

#nav-right a:hover {
    color: #0000FF;
}

/*输入栏*/
#search-box,
#search-wrapper {
    position: relative;
    padding: 10px;
}

#search-wrapper {
    width: 650px;
    margin: auto;
    margin-top: 150px;
}

#search-box {
    width: 80%;
    border: 1px solid #ccc;
    outline: 0;
    border-radius: 10px 0px 0px 10px;
}

#search-box:focus {
    box-shadow: 0 0 15px 5px #b0e0ee;
    border: 1px solid #4e6ef2;
}

/*搜索按钮和输入栏*/
button {
    width: 100px;
    height: 36px;
    color: white;
    margin-left: -4px;
    margin-top: 10px;
    border: none;
    background-color: #4e6ef2;
    border-radius: 0px 10px 10px 0px;
}

button:hover {
    outline: none;
    background-color: #4662d9;
}

input {
    border: 1px solid #4e6ef2;
    width: 500px;
    height: 36px;
    margin-right: -1px;
}

/*关于部分*/
#about {
    font: 13px 'PingFang SC', Arial, 'Microsoft YaHei', sans-serif;
    font-size: 13px;
    padding-top: 200px;
    position: absolute;
    bottom: 80px;
    left: 50%;
    margin-left: -165.34px;
}

#about a {
    color: blue;
    margin-left: 10px;
    margin-right: 10px;
    text-decoration: none;
}

/*版权部份*/
#copyright {
    color: gray;
    position: absolute;
    bottom: 40px;
    left: 50%;
    margin-left: -242.195px;
}

#copyright a {
    color: gray;
    margin-right: 5px;
    padding-bottom: 100px;
    text-decoration: none;
}