.button {
	 --offset: 10px;
	 --border-size: 2px;
	 display: block;
	 position: relative;
	 padding: 1.5em 3em;
	 appearance: none;
	 border: 0;
	 background: transparent;
	 color:  red;
	 text-transform: uppercase;
	 letter-spacing: 0.25em;
	 outline: none;
	 cursor: pointer;
	 font-weight: bold;
	 border-radius: 0;
	 box-shadow: inset 0 0 0 var(--border-size) currentcolor;
	 transition: background 0.8s ease;
   text-align:center;
   margin:auto;
}
 .button:hover {
	 background: rgba(100, 0, 0, .03);
}
 .button__horizontal, .button__vertical {
	 position: absolute;
	 top: var(--horizontal-offset, 0);
	 right: var(--vertical-offset, 0);
	 bottom: var(--horizontal-offset, 0);
	 left: var(--vertical-offset, 0);
	 transition: transform 0.8s ease;
	 will-change: transform;
}
 .button__horizontal::before, .button__vertical::before {
	 content: '';
	 position: absolute;
	 border: inherit;
}
 .button__horizontal {
	 --vertical-offset: calc(var(--offset) * -1);
	 border-top: var(--border-size) solid currentcolor;
	 border-bottom: var(--border-size) solid currentcolor;
}
 .button__horizontal::before {
	 top: calc(var(--vertical-offset) - var(--border-size));
	 bottom: calc(var(--vertical-offset) - var(--border-size));
	 left: calc(var(--vertical-offset) * -1);
	 right: calc(var(--vertical-offset) * -1);
}
 .button:hover .button__horizontal {
	 transform: scaleX(0);
}
 .button__vertical {
	 --horizontal-offset: calc(var(--offset) * -1);
	 border-left: var(--border-size) solid currentcolor;
	 border-right: var(--border-size) solid currentcolor;
}
 .button__vertical::before {
	 top: calc(var(--horizontal-offset) * -1);
	 bottom: calc(var(--horizontal-offset) * -1);
	 left: calc(var(--horizontal-offset) - var(--border-size));
	 right: calc(var(--horizontal-offset) - var(--border-size));
}
 .button:hover .button__vertical {
	 transform: scaleY(0);
}

.center3 {
  margin: auto;
  padding: 10px;
}

#myBtn {
  position: fixed; /* Fixed/sticky position */
  bottom: 20px; /* Place the button at the bottom of the page */
  right: 30px; /* Place the button 30px from the right */
  z-index: 99; /* Make sure it does not overlap */
  border: none; /* Remove borders */
  outline: none; /* Remove outline */
  background-color: red; /* Set a background color */
  color: white; /* Text color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 15px; /* Some padding */
  border-radius: 10px; /* Rounded corners */
  font-size: 18px; /* Increase font size */
}

#myBtn:hover {
  background-color: #555; /* Add a dark-grey background on hover */
}