* {
  box-sizing: border-box;
}

.grid {
  display: flex;
  flex-wrap: wrap;
}
.grid.-gutters {
  margin-left: -10px;
}
.grid.-gutters > .grid__col {
  padding-left: 10px;
}
.grid.-align-top {
  align-items: flex-start;
}
.grid.-align-bottom {
  align-items: flex-end;
}
.grid.-align-center {
  align-items: center;
}

.grid__col {
  flex: 1;
}
.grid__col.-span-1 {
  flex: none;
  width: 10%;
}
.grid__col.-span-2 {
  flex: none;
  width: 20%;
}
.grid__col.-span-3 {
  flex: none;
  width: 30%;
}
.grid__col.-span-4 {
  flex: none;
  width: 40%;
}
.grid__col.-span-5 {
  flex: none;
  width: 50%;
}
.grid__col.-span-6 {
  flex: none;
  width: 60%;
}
.grid__col.-span-7 {
  flex: none;
  width: 70%;
}
.grid__col.-span-8 {
  flex: none;
  width: 80%;
}
.grid__col.-span-9 {
  flex: none;
  width: 90%;
}
.grid__col.-span-10 {
  flex: none;
  width: 100%;
}
.grid__col.-align-right {
  text-align: right;
}

.grid {
  background: green;
  padding-top: 10px;
  padding-bottom: 10px;
  margin-bottom: 5px;
}

.grid__col {
  background: red;
  padding-top: 10px;
  padding-bottom: 10px;
}

.content {
  background: blue;
}