.btn1{
  /* position: absolute; */
  display: flex;
  justify-content: center;
}

:active, :hover, :focus {
  outline: 0!important;
  outline-offset: 0;
}
::before,
::after {
  position: absolute;
  content: "";
}

.btn-holder {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 1000px;
  margin: 10px auto 35px;
}
.btn {
  position: relative;
  display: inline-block;
  width: auto; height: auto;
  background-color: transparent;
  border: none;
  cursor: pointer;
  margin: 0px 25px 15px;
  min-width: 150px;
}
  .btn span {         
    position: relative;
    display: inline-block;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 2px;
    text-transform: uppercase;
    top: 0; left: 0;
    width: 100%;
    padding: 15px 20px;
    transition: 0.3s;
  }



/*--- btn-5 ---*/
.btn-5 span {
  color: rgb(28, 31, 30);
  border: 2px solid rgb(249, 27, 27);
  transition: 0.2s;
}
.btn-5 span:hover {
  background-color: rgb(245,245,245);
}

/* 21. hover-border-11 */
.btn.hover-border-11::before,
.btn.hover-border-11::after {
  width: 100%; height: 2px;
  background-color: rgb(54, 56, 55);
  z-index: 2;
  transition: 0.35s; 
}
.btn.hover-border-11::before {
  top: 0; right: 0;
}
.btn.hover-border-11::after {
  bottom: 0; left: 0;
}
.btn.hover-border-11:hover::before,
.btn.hover-border-11:hover::after {
  width: 0%;
  transition: 0.2s 0.2s ease-out; 
}

.btn.hover-border-11 span::before,
.btn.hover-border-11 span::after {
  width: 2px; height: 100%;
  background-color: rgb(54, 56, 55);
  z-index: 2;
  transition: 0.25s; 
}
.btn.hover-border-11 span::before {
  bottom: 0; right: -2px;
}
.btn.hover-border-11 span::after {
  top: 0; left: -2px;
}
.btn.hover-border-11 span:hover::before,
.btn.hover-border-11 span:hover::after {
  height: 0%;
}