.wp_guestbook_head_fixed {
    display: none;
}
.wp_guestbook_lists {
    display: none;
}.wp_guestbook {
    padding: 0;
}
@media screen and (max-width: 767px){
.post_item {
    margin-bottom: 10px;
    height: auto;
    line-height: 30px;
    color: #000;
}
.post_box {
    border: 1px solid #d9d9d9;
    padding: 0;
  overflow:     visible;
     border-radius: 5px; 
}
.post_box iframe#msgIframe {
    min-height: 422px;
}
.post_item label {
    width: 80px;
}
}

@media screen and (max-width: 479px){
.post_item .ex_item {
    display: block;
    text-align: center;
    margin: 0;
}
.item_title .input {
    width: 194px;
}
.item_title .input input {
    width: 176px;
}.post_item .text textarea {
    width: 194px;
}
.post_item.item_code span.input {
    width: 150px;
}
.post_item.item_code span.input input#msg_code {
    width: 140px;
}.post_box {
    padding-top: 10px;
}span.ex_item.item_anon {
    display: inline-block;
}.post_item.item_author {
    text-align: center;
}


}