#container{
  text-align: center;
  padding: 0;
  margin: 0;
}
#nameList{
  width: 240px;
  margin-left: auto;
  margin-right: auto;
}
.nameItem{
  display: flex;
  flex-direction: row;
  text-align: left;
  width: 100%;
  height: 30px;
  border: 1px solid #ccc;
  border-radius: 4px;
  margin: 2px 0;
  user-select: none;
  -webkit-user-select: none;
}
.sub{
  display: block;
  width: 100%;
  margin-left: 2px;
  margin-right: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  align-items: center;
  line-height: 30px;
}
#submit{
  width: 120px;
  height: 33px;
  border: none;
  outline: none;
  cursor: pointer;
  border-bottom: 2px solid gray;
  transition: 0.5s;
}
#submit:hover{
  background-color: #ccc;
}
#userName{
  width: 240px;
  height: 33px;
  border: none;
  border-bottom: 2px solid lightgray;
  outline: none;
}
.del{
  color: white;
  width: 33px;
  margin-left: auto;
  cursor: pointer;
  text-align: center;
  font-size: 20px;
  background-color: #999;
  transition: 0.5s;
}.del:hover{
  background-color: #666;
}