body{
font-size: 13px;

background: rgba(0, 0, 0, 0)
 url("https://images.cnblogs.com/cnblogs_com/Alpharun/1193631/o_1523072328276.jpg")  
no-repeat fixed 0% 0% / cover;

}


element.style {
}
#topics,.catListPostCategory,.catListPostArchive,.catListTitle,.catListLink,.day,.newsItem,#blog-calendar {
    border-radius: 0px; 
}
.catListEssay, .catListLink, .catListNoteBook, .catListTag, .catListPostCategory, .catListPostArchive, .catListImageCategory, .catListArticleArchive, .catListView, .catListFeedback, .mySearch, .catListComment, .catListBlogRank, .catList, .catListArticleCategory{
    border-radius: 0px; 
}
#home{
opacity: 1;
}
#sidebar_search{
display:none;
}