.row {
  margin: 0 auto;
  max-width: 100%;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

[class*='space-'],
[class*='row'] {
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
}

[class*='space-'] {
  float: left;
  padding: 0.3em;
  display:inline;
  position: relative;
}

.space-1 {
  width: 100%;
}

.space-2 {
  width: 50%;
}

.space-3 {
  width: 33.33333%;
}

.space-4 {
  width: 25%;
}

.space-5 {
  width: 20%;
}

.space-6 {
  width: 16.66667%;
}

.space-7 {
  width: 14.28571%;
}

.space-8 {
  width: 12.5%;
}

.space-9 {
  width: 11.11111%;
}

.space-10 {
  width: 10%;
}

.space-11 {
  width: 9.09091%;
}

.space-12 {
  width: 8.33333%;
}

.space-25 {
  width: 25%;
}

.space-40 {
  width: 40%;
}

.space-60 {
  width: 60%;
}

.space-66 {
  width: 66%;
}

.space-75 {
  width: 75%;
}

@media (max-width: 425px) {
  .space-1,
  .space-2,
  .space-3,
  .space-4,
  .space-5,
  .space-6,
  .space-7,
  .space-8,
  .space-9,
  .space-10,
  .space-11,
  .space-12 {
    width: 100%;
  }
}

@media (min-width: 425px) and (max-width: 768px) {
  .space-4,
  .space-6,
  .space-8,
  .space-10,
  .space-12 {
    width: 50%;
  }
  .space-1,
  .space-2,
  .space-3,
  .space-5,
  .space-7,
  .space-9,
  .space-11 {
    width: 100%;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .space-7 {
    width: 100%;
  }
  .space-2,
  .space-4,
  .space-8,
  .space-10,
  .space-12 {
    width: 50%;
  }
}