body {
  font-family: sans;
}

.sortable {

}

.sort-item {
  padding: 1em;
  border: #CCC 1px solid;
  border-radius: 0.2em;
}

.blue-background-class {
  background: #CDF;
}

body {
    display: grid;
}

#hello {
    grid-column: 1  / 3;
}
#h-day, #h-time, #h-place {
    grid-column: 1  / 3;
}