diff --git a/main.css b/main.css
new file mode 100644
index 0000000..0319807
--- /dev/null
+++ b/main.css
@@ -0,0 +1,135 @@
+body{
+    font-family: serif;
+    padding-right: 10%;
+    padding-left: 10%;
+    padding-top: 5%;
+    background: url("kabegami.png") no-repeat center fixed;
+    background-size:cover;
+}
+h1{
+    background:rgba(0,0,0,0.2);
+    width:fit-content;
+    padding: 2%;
+    border-radius: 30px;
+    text-align: center;
+    margin-top: 10%;
+}
+nav {
+  position: fixed;
+  top: 0;
+  left: 0;
+  padding-top: 5px;
+  box-sizing: border-box;
+  width: 100%;
+  height: 70px;
+  background-color: dimgray;
+}
+li {
+  list-style: none;
+}
+a {
+  display: block;
+  text-decoration: none;
+  color: white;
+  margin-right: 35px;
+}
+ul {
+  display: flex;
+}
+.fl::first-letter {
+  font-size: 4em;
+  float: left;
+}
+p{
+    font-size: 20px;
+    padding-top: 5%;
+    padding-bottom: 5%;
+    line-height: 2.0;
+}
+.toc-005 {
+    margin-bottom: 30px;
+    border-radius: 3px;
+    background-color: #f5f5f5;
+}
+
+.toc-005 div {
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    margin: 0;
+    padding: 10px 0;
+    background-color: #a3a3a3;
+    color: #fff;
+    font-weight: 600;
+    font-size: 1.1em;
+}
+
+.toc-005 label::after {
+    margin-left: 7px;
+    font-weight: 500;
+    font-size: .7em;
+    color: #fff;
+    content: "[開く]";
+    cursor: pointer;
+}
+
+.toc-005:has(:checked) label::after {
+    content: "[閉じる]";
+}
+
+.toc-005 input {
+    display: none;
+}
+
+.toc-005 ol {
+    list-style-type: decimal;
+    margin: 0;
+    overflow: hidden;
+}
+
+.toc-005 > ol {
+    height: 0;
+}
+
+.toc-005:has(:checked) > ol {
+    height: auto;
+    padding: 1em 1em 1em 3em;
+}
+
+.toc-005 ol ol {
+    margin-top: 5px;
+    padding-left: 1.1em;
+}
+
+.toc-005 li {
+    padding: 5px 0;
+    font-weight: 600;
+}
+
+.toc-005 ol ol li {
+    font-weight: 500;
+    font-size: .9em;
+}
+
+.toc-005 a {
+    color: #333;
+    text-decoration: none;
+}
+h2{
+    font-size: 25px;
+    font-weight: bold;
+}
+.mailadress{
+    background:rgba(0,0,0,0.2);
+    text-align: center;
+    border-radius: 30px;
+    font-size: 30px;
+}
+footer {
+  position: fixed;
+  bottom: 0.1;
+}
+.quote{
+    text-align: center;
+    font-size: 4em;
+}