.index_content_container {
    position: relative;
    max-width: 1200px;
    height: auto;
}

.head_container {
    width: 100%;
    height: 100px;
    background-color: #f1f1f1;
    z-index: 99;
}

.head_content {
    max-width: 1200px;
    width: auto;
    height: 100px;
}

.head_blank {
    width: 100%;
    height: 100px;
}