<div class="osnova-karkas">
  <button class="cavel_tuaka ksakad-1">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-2">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-3">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-4">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-5">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-6">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-7">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-8">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-9">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-10">ZORNET.RU</button>
  <button class="cavel_tuaka ksakad-11">ZORNET.RU</button>
</div>

.osnova-karkas {
  margin: 10%;
  text-align: center;
}

.cavel_tuaka {
  width: 200px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  cursor: pointer;
  margin: 20px;
  height: 55px;
  text-align:center;
  border: none;
  background-size: 300% 100%;

  border-radius: 50px;
  moz-transition: all .4s ease-in-out;
  -o-transition: all .4s ease-in-out;
  -webkit-transition: all .4s ease-in-out;
  transition: all .4s ease-in-out;
}

.cavel_tuaka:hover {
  background-position: 100% 0;
  moz-transition: all .4s ease-in-out;
  -o-transition: all .4s ease-in-out;
  -webkit-transition: all .4s ease-in-out;
  transition: all .4s ease-in-out;
}

.cavel_tuaka:focus {
  outline: none;
}

.cavel_tuaka.ksakad-1 {
  background-image: linear-gradient(to right, #1d85b1, #27cf7e, #1bc775, #2bb673);
  box-shadow: 0 4px 15px 0 rgba(49, 196, 190, 0.75);
}
.cavel_tuaka.ksakad-2 {
  background-image: linear-gradient(to right, #d7b045, #c13f19, #d72b5d, #bb4611);
  box-shadow: 0 4px 15px 0 rgba(229, 66, 10, 0.75);
}
.cavel_tuaka.ksakad-3 {
  background-image: linear-gradient(to right, #445dcb, #683c95, #507bd7, #7e25c9);
  box-shadow: 0 4px 15px 0 rgba(116, 79, 168, 0.75);
}
.cavel_tuaka.ksakad-4 {
  background-image: linear-gradient(to right, #b7505f, #b56e33, #ab7539, #d16739);
  box-shadow: 0 4px 15px 0 rgba(252, 104, 110, 0.75);
}
.cavel_tuaka.ksakad-5 {
  background-image: linear-gradient(to right, #078b51, #2fa781, #21d17d, #21ab68);
  box-shadow: 0 4px 15px 0 rgba(23, 168, 108, 0.75);
}
.cavel_tuaka.ksakad-6 {
  background-image: linear-gradient(to right, #0b8343, #ddcf0b, #0dc0df, #d5dd0b);
  box-shadow: 0 4px 15px 0 rgba(83, 176, 57, 0.75);
}
.cavel_tuaka.ksakad-7 {
  background-image: linear-gradient(to right, #584acd, #7e248b, #8987ed, #e13736);
  box-shadow: 0 4px 15px 0 rgba(126, 52, 161, 0.75);
}
.cavel_tuaka.ksakad-8 {
  background-image: linear-gradient(to right, #29323c, #485563, #2b5876, #4e4376);
  box-shadow: 0 4px 15px 0 rgba(45, 54, 65, 0.75);
}
.cavel_tuaka.ksakad-9 {
  background-image: linear-gradient(to right, #25aae1, #4481eb, #04befe, #3f86ed);
  box-shadow: 0 4px 15px 0 rgba(65, 132, 234, 0.75);
}
.cavel_tuaka.ksakad-10 {
  background-image: linear-gradient(to right, #cf5987, #e57a53, #d9185f , #d99429);
  box-shadow: 0 4px 15px 0 rgba(236, 116, 149, 0.75);
}
.cavel_tuaka.ksakad-11 {
  background-image: linear-gradient(to right, #d72b32, #d75b60, #db3238, #f76c72); box-shadow: 0 5px 15px rgba(242, 97, 103, .4);
}