body {
  background: #414045;
/*
  background: #dbdde0;
  background: #fff;
*/
  transition: all .3s linear;
}

svg {
  margin-top: 4em;
  width: 100%;
  height: auto;
}
@media all and (max-width:500px) {
  svg {
    margin-top: 3em;
  }
}

/* center in middle */
.table {
  position: absolute;
  top: 0;
  left: 0;
  display: table;
  width: 100%;
  height: 100%;
}
.cell {
  display: table-cell;
  width: 100%;
  height: 100%;
  vertical-align: middle;
}

/* variable classes */
.block {
  display: block;
}
.fill {
  width: 100%;
}

input {
  background: #EBEBEB;
}

#article {
  margin-top: 600px;
  color :white;
  padding: 3% 10% 1%;
}