@media (max-width:898px) {
  .first{
    background: #E91E63;
    display: inline-block;
    width: 100%;
    padding-right: 70px;
  }
  .secound{
    background: #5C5C5C;
    background-position: center;
    background-size: cover;
    float: left;
    display: inline-block;
    width: 100%;
  }
  .third{
    background: #00BCD4;
    display: inline-block;
    float: right;
    width: 100%;
    padding-right: 70px;
  }
  .fourth{
    background: darkgrey;
    background-position: center;
    background-size: cover;
    float: left;
    display: inline-block;
    width: 100%;
  }
  .fifth{
    background: darkblue;
    display: inline-block;
    float: right;
    width: 100%;
    padding-right: 70px;
  }
  .sixth{
    background: #404040;
    display: inline-block;
    float: left;
    width: 100%;
    padding-right: 70px;
  }
  .seventh{
      background: deeppink;
      display: inline-block;
      float: right;
      width: 100%;
      padding-right: 70px;
  }
  .eight{
    background: black;
    display: inline-block;
    float: left;
    width: 100%;
    padding-right: 70px;
  }
}

@media (min-width:899px) {
.first{
  background: #E91E63;
  display: inline-block;
  float: right;
  width: 40%;
  padding-right: 70px;
}
.secound{
  background: #5C5C5C;
  background-position: center;
  background-size: cover;
  padding-left: 20px;
  padding-right: 20px;
  float: left;
  display: inline-block;
  width: 50%;
}
.third{
  background: #00BCD4;
  display: inline-block;
  margin-top: 50px;
  margin-bottom: 50px;
  float: right;
  width: 40%;
  padding-right: 70px;
}
.fourth{
  background: darkgrey;
  background-position: center;
  background-size: cover;
  padding-left: 20px;
  padding-right: 20px;
  float: left;
  display: inline-block;
  width: 50%;
}
.fifth{
  background: darkblue;
  display: inline-block;
  margin-top: 50px;
  margin-bottom: 50px;
  float: right;
  width: 40%;
  padding-right: 70px;
}
.sixth{
  background: #404040;
  display: inline-block;
  margin-top: 50px;
  margin-bottom: 50px;
  float: left;
  width: 50%;
  padding-right: 70px;
}
.seventh{
    background: deeppink;
    display: inline-block;
    margin-top: 50px;
    margin-bottom: 50px;
    float: right;
    width: 45%;
    padding-right: 70px;
}
.eight{
  background: black;
  display: inline-block;
  margin-top: 50px;
  margin-bottom: 50px;
  float: left;
  width: 50%;
  padding-right: 70px;
}
}