<div class="najma"></div>
.najma {
  margin: 50px auto;
  width: 250px;
   height: 250px;
  border-top: 20px solid #3ACFD5;
  border-bottom: 20px solid #3a4ed5;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  background-position: 0 0, 100% 0;
  background-repeat: no-repeat;
  -webkit-background-size: 20px 100%;
  -moz-background-size: 20px 100%;
  background-size: 20px 100%;
  /*www.najmacode.com
  ==================== Gradient*/
  background-image: -webkit-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%), -webkit-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%);
  background-image: -moz-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%), -moz-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%);
  background-image: -o-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%), -o-linear-gradient(top, #3acfd5 0%, #3a4ed5 100%);
  background-image: linear-gradient(to bottom, #3acfd5 0%, #3a4ed5 100%), linear-gradient(to bottom, #3acfd5 0%, #3a4ed5 100%);
}

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