【Cocoon】サイドバーデザインをオシャレに簡単カスタマイズ！

.sidebar h3 {
  background: none;
  font-size: 16px;
  letter-spacing: 2px;
  display: inline-block;
  position: relative;
  width: 100%;
  padding: 0;
  text-align: center;
  color: #ffc679; /* サイドバータイトルの色を指定 */
}
.sidebar h3::before,
.sidebar h3::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 28%;
  border-top: 3px solid #ffc679; /* サイドバータイトル横のバーの色を指定 */
}
.sidebar h3::before {
  left: 0;
}
.sidebar h3::after {
  right: 0;
}
.widget_categories ul li a {
  color: #333;
  text-decoration: none;
  padding: 6px 0;
  display: block;
  padding-right: 4px;
  padding-left: 4px;
  border-top: 1px dotted #ccc;
  font-size: 16px;
}
.widget_categories ul li a::before {
  font-family: "Font Awesome 5 Free";
  content: "\f07b";
  padding-right: 10px;
}
.widget_categories > ul > li > a:first-child {
  border-top: none;
}
.widget_categories > ul > li > a:last-child {
  border-bottom: 1px dotted #ffc679;
}
.widget_categories ul li a .post-count {
  display: block;
  float: right;
  background: #fff;
  padding: 0 1em;
  font-size: 14px;
  margin-top: 0.2em;
  border-radius: 4px;
}
.widget_categories ul li a:hover {
  background: none;
  transition: 0.5s;
  color: #ffc679;
}
.widget_categories ul li a:hover .post-count {
  background: #ffc679;
  color: #fff;
  transition: 0.5s;
}
.widget_categories ul li ul {
  border-bottom: 1px dotted #ccc;
}
.widget_categories ul li ul li a {
  color: #333;
  text-decoration: none;
  padding: 0 4px 4px 4px;
  display: block;
  border: none;
}
.widget_categories ul li ul li a::before {
  font-family: "Font Awesome 5 Free";
  content: "\f105";
  padding-right: 0.45em;
  font-weight: bold;
}
.author-box .sns-follow-buttons a.follow-button {
  background-color: #fff;
  color: black;
  border: 0px;
}
.author-box {
  border: 0px;
}
.author-box p {
  margin-top: 0.3em;
  line-height: 1.6;
}
.author-box p a {
  text-decoration: none;
}
.author-box p a:hover {
  text-decoration: underline;
  color: #008cee; /* プロフィールにリンクを貼っている場合, ホバーした際の色指定 */
}
/* スマホサイドバー設定 */
#sidebar .author-box {
  border: none;
  border-radius: 4px;
  margin: 1em 0;
  line-height: 1.4;
  position: relative;
  padding: 1.4% 2% 1.8%;
}
#sidebar .author-thumb {
  float: none;
  width: 100%;
  margin: 9px auto 0;
  height: 0;
  padding-top: 75px;
  position: relative;
}
#sidebar .author-thumb img {
  border: 3px dashed #ffc679;
  width: 35%;
  padding: 6px;
  margin: 0 auto;
  position: absolute;
  left: 0;
  right: 0;
  bottom: -25%;
}
#sidebar .author-content {
  margin-top: 16%;
  font-size: 0.9em;
}