forClass
code: style.css
/* = 隠し文字（いわゆる「めくり」） */
.deco-\({
color: rgba(255,255,255,0);
font-weight: 600;
}
.deco-\(::before{
color: var(--tool-text-color);
content: "【";
/* content: "【"; */
font-weight: bold;
}
.deco-\(::after{
color: var(--tool-text-color);
content: "】";
/* content: "【"; */
font-weight: bold;
}
.deco-\){
font-weight: 600;
}
.deco-\)::before{
content: "【　";
font-weight: bold;
}
.deco-\)::after{
content: "　】";
font-weight: bold;
}