<div class="buttons">
  <button class="action bluebtn"><span class="label"><a href="https://zagruzka-up.ru/">Сохранить</a></span></button>
  <button class="action redbtn"><span class="label"><a href="https://zagruzka-up.ru/">Загрузить</a></span></button>
  <button class="action greenbtn"><span class="label"><a href="https://zagruzka-up.ru/">Комментировать</a></span></button>
  <button class="action"><span class="label"><a href="https://zagruzka-up.ru/">Отменить</a></span></button>
  </div>

/*------------------------------------*
  $WRAPPER
*------------------------------------*/
.buttons {/* Style as you wish (toolbar) */
}
/* The Magnificent CLEARFIX */
.buttons:before, .buttons:after {
  content: "020";
  display: block;
  height: 0;
  visibility: hidden;
}
.buttons:after {
  clear: both;
}
.buttons {
  zoom: 1;
}
/* ------------------------ */
/*------------------------------------*
  $BUTTON
*------------------------------------*/
button {
  text-decoration: none;
  text-shadow: 0 1px 0 #fff;
  font: bold 11px Helvetica, Arial, sans-serif;
  color: #444;
  line-height: 17px;
  height: 18px;
  display: inline-block;
  float: left;
  margin: 5px;
  padding: 5px 6px 4px 6px;
  background: #F3F3F3;
  border: solid 1px #D9D9D9;
  border-radius: 2px;
  -webkit-border-radius: 2px;
  -moz-border-radius: 2px;
  -webkit-transition: border-color .20s;
  -moz-transition: border-color .20s;
  -o-transition: border-color .20s;
  transition: border-color .20s;
  height: 29px !important;
  cursor: pointer;
}
button:hover {
  background: #F4F4F4;
  border-color: #C0C0C0;
  color: #333;
}
button:active {
  border-color: #4D90FE;
  color: #4D90FE;
  -moz-box-shadow:inset 0 0 10px #D4D4D4;
  -webkit-box-shadow:inset 0 0 10px #D4D4D4;
  box-shadow:inset 0 0 10px #D4D4D4;
}
button.bluebtn {
  border: 1px solid #3079ED !important;
  background: #4B8DF8;
  background: -webkit-linear-gradient(top, #4C8FFD, #4787ED);
  background: -moz-linear-gradient(top, #4C8FFD, #4787ED);
  background: -ms-linear-gradient(top, #4C8FFD, #4787ED);
  background: -o-linear-gradient(top, #4C8FFD, #4787ED);
  -webkit-transition: border .20s;
  -moz-transition: border .20s;
  -o-transition: border .20s;
  transition: border .20s;
}
button.bluebtn:hover {
  border: 1px solid #2F5BB7 !important;
  background: #3F83F1;
  background: -webkit-linear-gradient(top, #4D90FE, #357AE8);
  background: -moz-linear-gradient(top, #4D90FE, #357AE8);
  background: -ms-linear-gradient(top, #4D90FE, #357AE8);
  background: -o-linear-gradient(top, #4D90FE, #357AE8);
}
button.greenbtn {
  border: 1px solid #29691D !important;
  background: #3A8E00;
  background: -webkit-linear-gradient(top, #3C9300, #398A00);
  background: -moz-linear-gradient(top, #3C9300, #398A00);
  background: -ms-linear-gradient(top, #3C9300, #398A00);
  background: -o-linear-gradient(top, #3C9300, #398A00);
  -webkit-transition: border .20s;
  -moz-transition: border .20s;
  -o-transition: border .20s;
  transition: border .20s;
}
button.greenbtn:hover {
  border: 1px solid #2D6200 !important;
  background: #3F83F1;
  background: -webkit-linear-gradient(top, #3C9300, #368200);
  background: -moz-linear-gradient(top, #3C9300, #368200);
  background: -ms-linear-gradient(top, #3C9300, #368200);
  background: -o-linear-gradient(top, #3C9300, #368200);
}
button.redbtn {
  border: 1px solid #D14836 !important;
  background: #D64937;
  background: -webkit-linear-gradient(top, #DC4A38, #D14836);
  background: -moz-linear-gradient(top, #DC4A38, #D14836);
  background: -ms-linear-gradient(top, #DC4A38, #D14836);
  background: -o-linear-gradient(top, #DC4A38, #D14836);
  -webkit-transition: border .20s;
  -moz-transition: border .20s;
  -o-transition: border .20s;
  transition: border .20s;
}
button.redbtn:hover {
  border: 1px solid #B0281A !important;
  background: #D14130;
  background: -webkit-linear-gradient(top, #DC4A38, #C53727);
  background: -moz-linear-gradient(top, #DC4A38, #C53727);
  background: -ms-linear-gradient(top, #DC4A38, #C53727);
  background: -o-linear-gradient(top, #DC4A38, #C53727);
}
button.action:hover {
  -moz-box-shadow: 0 1px 0px #DDD;
  -webkit-box-shadow: 0 1px 0px #DDD;
  box-shadow:iset 0 1px 0px #DDD;
}
button.action:active {
  -moz-box-shadow: none !important;
  -webkit-box-shadow: none !important;
  box-shadow: none !important;
  border-color: #C6C6C6 !important;
}
button.bluebtn:active {
  border-color: #2F5BB7 !important;
}
button.greenbtn:active {
  border-color: #2D6200 !important;
}
button.redbtn:active {
  border-color: #B0281A !important;
}
/*------------------------------------*
  $BUTTON LABEL
*------------------------------------*/
  button span.label {
  display: inline-block;
  float: left;
  line-height: 17px;
  height: 18px;
  padding: 0 1px;
  overflow: hidden;
  color: #444;
  -webkit-transition: color .20s;
  -moz-transition: color .20s;
  -o-transition: color .20s;
  transition: color .20s;
}
button span.label {
  line-height: 15px !important;
}
button:hover .label.bluebtn {
  color: #7090C8;
}
button:hover .label.greenbtn {
  color: #42B449;
}
button:hover .label.yellow {
  color: #F7CB38;
}
button.bluebtn .label {
  color: #FFF !important;
  text-shadow: 0 1px 0 #2F5BB7 !important;
}
button.greenbtn .label {
  color: #FFF !important;
  text-shadow: 0 1px 0 #2D6200 !important;
}
button.redbtn .label {
  color: #FFF !important;
  text-shadow: 0 1px 0 #B0281A !important;
}
button.action .label {
  padding: 0 17px !important;
}
button.action:active .label {
  color: #333 !important;
}
button.bluebtn:active .label, button.greenbtn:active .label, button.redbtn:active .label {
  color: #FFF !important;
}