.block-library-html__edit .block-library-html__preview-overlay{
height:100%;
position:absolute;
right:0;
top:0;
width:100%;
}
.block-library-html__edit .block-editor-plain-text{
background:#fff !important;
border:1px solid #1e1e1e !important;
border-radius:2px !important;
box-shadow:none !important;
color:#1e1e1e !important;
font-family:Menlo,Consolas,monaco,monospace !important;
font-size:16px !important;
max-height:250px;
padding:12px !important;
}
@media (min-width:600px){
.block-library-html__edit .block-editor-plain-text{
font-size:13px !important;
}
}
.block-library-html__edit .block-editor-plain-text:focus{
border-color:var(--wp-admin-theme-color) !important;
box-shadow:0 0 0 1px var(--wp-admin-theme-color) !important;
outline:2px solid transparent !important;
}
All system for education purposes only. For more tools: Telegram @jackleet