main {
    position: relative;
    width: 100%;
    height: 790px;
    z-index: 10;
}

.main-container {
    width: 840px;
    height: 100%;
    text-align: center;
    margin: 0 auto;
}

.main-container .title {
    margin: 35px auto 0;
    width: 747px;
    font-size: 56px;
    line-height: 90px;
    border-bottom: 4px solid #4e4e4e;
}

.main-container .content {
    width: 100%;
    height: 420px;
    margin-top: 62px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}

.content .user-box {
    position: relative;
    width: 270px;
    line-height: 56px;
}

.content .user-box .titlebar {
    display: block;
    font-size: 36px;
}

.content .user-box label {
    position: relative;
    display: block;
    width: 100%;
    height: 60px;
    border-radius: 7px;
    border: 1px solid #bbb;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #fff;
}

.content .user-box input {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 250px;
    height: 40px;
    line-height: 40px;
    font-size: 22px;
    background: transparent;
}

.content .textarea-box {
    position: relative;
    width: 470px;
    height: 345px;
    border-radius: 7px;
    border: 1px solid #4e4e4e;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    background: #fff;
}

.content .textarea-box .textarea {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 450px;
    height: 325px;
    resize: none;
    font-size: 20px;
    line-height: 25px;
    overflow-x: hidden;
    overflow-y: auto;
    color: #666;
    background: transparent;
}

.content .submit-box {
    position: relative;
    width: 236px;
    height: 47px;
    margin-top: 25px;
    border-radius: 7px;
    background: black;
    clear: both;
}

.content .submit-box input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    line-height: 50px;
    font-size: 36px;
    color: #fff;
    border-radius: 7px;
    font-family: '方正行楷简体';
    background: transparent;
}