<div class="box-1">Hola</div>
<div class="box-2">Adios</div>

[class^="box-"]{
  background:yellow;
  padding:50px;
  width:250px;
  float:left;
}


.box-1{
  margin-top:50px;
  margin-right:100px;
}

<div class="box-1">Hola</div>
<div class="box-2">Adios</div>

[class^="box-"]{
  background:yellow;
  padding:50px;
  width:250px;
  float:left;
}


.box-1{
  margin-top:50px;
  margin-right:100px;
}

<div class="box-1">Hola</div>
<div class="box-2">Adios</div>

[class^="box-"]{
  background:yellow;
  padding:50px;
  width:250px;
  float:left;
}


.box-1{
  margin-top:50px;
  margin-right:100px;
}