body{
    font-family: 'Google Sans','Noto Sans SC';
    padding: 0;
    margin: 0;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
m3e-nav-bar{
    order: 1;
    flex: none;
    width: 100%;
    z-index: 100;
}
.content{
    display: none;
}
.content.active{
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 2rem;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    box-sizing: border-box;
}
h3{
    margin: 0;
}
.quick-preview-code{
    display: flex; 
    flex-direction: row; 
    gap: 10px; 
    align-items: stretch; 
    width: 100%;
}
.quick-preview-code > * {
    flex: 1;
}
.write-replace-ctrl, .convert-bar{
    display: flex; 
    flex-direction: row; 
    align-items: center; 
    justify-content: flex-end; 
    width: 100%; 
    gap: 8px
}
.write > m3e-card{
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}
.write > m3e-card > div{
    padding: 10px;
    white-space: pre-wrap;
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
}
.write > m3e-card > div ruby, .write > m3e-card > div > ruby, .write ruby {
    user-select: none;
    -webkit-user-select: none;
}
.write > m3e-card > div span, .write > m3e-card > div > span, .write span {
    user-select: contain;
    -webkit-user-select: contain;
}