首先進入部落格設定

然後在頁面Css程式碼裡將以下程式碼貼上進去！

  1 /*simplememory*/
  2 #google_ad_c1, #google_ad_c2 {display:none;}
  3 .syntaxhighlighter a, .syntaxhighlighter div, .syntaxhighlighter code, .syntaxhighlighter table, .syntaxhighlighter table td, .syntaxhighlighter table tr, .syntaxhighlighter             table tbody, .syntaxhighlighter table thead, .syntaxhighlighter table caption, .syntaxhighlighter textarea 
 
{
  4 font-size: 14px!important;
  5 }
  6 #home {
  7 opacity: 0.80;
  8 margin: 0 auto;
  9 width: 85%;
 10 min-width: 950px;
 11 background-color: #fff;
 12 padding: 30px;
 13 margin-top: 30px;
 14 margin-bottom: 50px;
 15 box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
 16 }
 17 #blogTitle h1 {
 18 font-size: 30px
 
;
 19 font-weight: bold;
 20 font-family: "Comic Sans MS";
 21 line-height: 1.5em;
 22 margin-top: 20px;
 23 color: #515151;
 24 }
 25 #navList a:hover {
 26 color: #4C9ED9;
 27 text-decoration: none;
 28 }
 29 #navList a {
 30 display: block;
 31 width: 5em;
 32 height: 22px;
 33 float: left;
 34 text-align
 
: center;
 35 padding-top: 18px;
 36 }
 37 #navigator {
 38 font-size: 15px;
 39 border-bottom: 1px solid #ededed;
 40 border-top: 1px solid #ededed;
 41 height: 50px;
 42 clear: both;
 43 margin-top: 25px;
 44 }
 45 .catListTitle {
 46 margin-top: 21px;
 47 margin-bottom: 10.5px;
 48 text-align: left;
 49 border-left: 10px solid rgba(82, 168, 236, 0.8);
 50 padding: 10px 0 14px 10px;
 51 background-color: #f5f5f5;
 52 }
 53 #ad_under_post_holder #google_ad_c1,#google_ad_c2{  
 54 display: none !important;
 55 }
 56 body {
 57 color: #000;
 58 background: url(http://images2015.cnblogs.com/blog/969197/201703/969197-20170325160900815-1058599404.jpg
 59 ) fixed;
 60 background-size: 100%;
 61 background-repeat: no-repeat;
 62 font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
 63 font-size: 12px;
 64 min-height: 101%;
 65 }
 66 #topics .postTitle {
 67 border: 0px;
 68 font-size: 200%;
 69 font-weight: bold;
 70 float: left;
 71 line-height: 1.5;
 72 width: 100%;
 73 padding-left: 5px;
 74 }
 75 
 76 
 77 div.commentform p{
 78 margin-bottom:10px;
 79 }
 80 .comment_btn {
 81 padding: 5px 10px;
 82 height: 35px;
 83 width: 90px;
 84 border: 0 none;
 85 border-radius: 5px;
 86 background: #ddd;
 87 color: #999;
 88 cursor:pointer;
 89 font-family: "Lato", Helvetica Neue, Helvetica, Microsoft Yahei, 宋體, Arial, sans-serif;
 90 text-shadow: 0 0 1px #fff;
 91 display: inline !important;
 92 }
 93 .comment_btn:hover{
 94 padding: 5px 10px;
 95 height: 35px;
 96 width: 90px;
 97 border: 0 none;
 98 border-radius: 5px;
 99 background: #258fb8;
100 color: white;
101 cursor:pointer;
102 font-family: "Lato", Helvetica Neue, Helvetica, Microsoft Yahei, 宋體, Arial, sans-serif;
103 text-shadow: 0 0 1px #fff;
104 display: inline !important;
105 }
106 #commentform_title {
107 background-image:none;
108 background-repeat:no-repeat;
109 margin-bottom:10px;
110 padding:0;
111 font-size:24px;
112 }
113 #commentbox_opt,#commentbox_opt + p {
114 text-align:center;
115 }
116 .commentbox_title {
117 width: 100%;
118 }
119 #tbCommentBody {
120 font-family:'Microsoft Yahei', Microsoft Yahei, 宋體, sans-serif;
121 margin-top:10px;
122 max-width:100%;
123 min-width:100%;
124 background:white;
125 color:#333;
126 border:2px solid #fff;
127 box-shadow:inset 0 0 8px #aaa;
128 // padding:10px;
129 height:250px;
130 font-size:14px;
131 min-height:120px;
132 }
133 .feedbackItem {
134 font-size:14px;
135 line-height:24px;
136 margin:10px 0;
137 padding:20px;
138 background:#F2F2F2;
139 box-shadow:0 0 5px #aaa;
140 }
141 .feedbackListSubtitle {
142 font-weight:normal;
143 }
144 
145 #blog-comments-placeholder, #comment_form {
146 padding: 20px;
147 background: #fff;
148 -webkit-box-shadow: 1px 2px 3px #ddd;
149 box-shadow: 1px 2px 3px #ddd;
150 margin-bottom: 50px;
151 }
152 .feedback_area_title {
153 margin-bottom: 15px;
154 font-size: 1.8em;
155 }
156 .feedbackItem {
157 border-bottom: 1px solid #CCC;
158 margin-bottom: 10px;
159 padding: 5px;
160 background: rgb(248, 248, 248);
161 }
162 .color_shine {background: rgb(226, 242, 255);}
163 .feedbackItem:hover {-webkit-animation-name: color_shine;-webkit-animation-duration: 2s;-webkit-animation-iteration-count: infinite;}
164 #comment_form .title {
165 font-weight: normal;
166 margin-bottom: 15px;
167 }

點選儲存就歐克了。

PS：

如果想要更換圖片背景的話，在剛才的CSS中找到下面的這個程式碼

body {
color: #000;
background: url(http://images2015.cnblogs.com/blog/969197/201703/969197-20170325160900815-1058599404.jpg
) fixed;
background-size: 100%;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
font-size: 12px;
min-height: 101%;
}

將圖片路徑更改為你的路徑即可。

但是這個路徑得是你上傳部落格園中的，可以隨意寫個隨筆，將圖片上傳。然後開啟這篇隨筆，複製圖片路徑粘到這個位置上即可。