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

[class*="col-"] {
  float: right;

}

.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

@media (max-width: 768px) {
    .col-md-0 {display: none !important;}
    .col-md-1 {width: 8.33%;}
    .col-md-2 {width: 16.66%;}
    .col-md-3 {width: 25%;}
    .col-md-4 {width: 33.33%;}
    .col-md-5 {width: 41.66%;}
    .col-md-6 {width: 50%;}
    .col-md-7 {width: 58.33%;}
    .col-md-8 {width: 66.66%;}
    .col-md-9 {width: 75%;}
    .col-md-10 {width: 83.33%;}
    .col-md-11 {width: 91.66%;}
    .col-md-12 {width: 100%;}
}

.container,
.container-fluid,
.container-sm,
.container-md,
.container-lg,
.container-xl {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 576px) {
  .container, .container-sm {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container, .container-sm, .container-md {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container, .container-sm, .container-md, .container-lg {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container, .container-sm, .container-md, .container-lg, .container-xl {
    max-width: 1140px;
  }
}


/** placement **/
@media (max-width: 768px) {
    .text-cen-md{
        text-align: center;
    }   
}
@media (max-width: 768px) {
    .obj-cen-md{
        margin-right: auto;
        margin-left: auto;
    }   
}