cryptpad/customize.dist/src/less2/include/app-noscroll.less

// html
.app-noscroll_main () {
    height: 100%;
    width: 100%;
    padding: 0px;
    margin: 0px;
    overflow: hidden;
    box-sizing: border-box;
    position: relative;
    body {
        height: 100%;
        width: 100%;
        padding: 0px;
        margin: 0px;
        overflow: hidden;
        box-sizing: border-box;
        position: relative;
    }
}