.center-box {
  width: 1140px;
  margin: 0 auto
}

.one-half {
  width: 50%;
}

.one-third {
  width: 33.33%;
}

.two-third {
  width: 66.66%;
}

.one-fourth {
  width: 25%;
}

.three-fourth {
  width: 75%;
}

.one-fifth {
  width: 20%;
}

.two-fifth {
  width: 40%;
}

.three-fifth {
  width: 60%;
}

.four-fifth {
  width: 80%;
}

.one-sixth {
  width: 16.66%;
}

.five-sixth {
  width: 83.33%;
}

.one-half,
.one-third,
.two-third,
.three-fourth,
.one-fourth,
.one-fifth,
.two-fifth,
.threefifth,
.four-fifth,
.one-sixth,
.five-sixth {
  float: left;
  min-height: 1px;
}


/* Mobilon pedig minden 100%-ra ugrik */

@media only screen and (max-width: 767px) {
  .center-box {
    width: 100%;
    padding-left: 20px;
    padding-right: 20px;
  }
  .one-half,
  .one-third,
  .two-third,
  .three-fourth,
  .one-fourth,
  .one-fifth,
  .two-fifth,
  .threefifth,
  .four-fifth,
  .one-sixth,
  .five-sixth {
    position: relative;
    float: none;
    width: 100%;
  }
}