/**** DoubleButtons *****/
.avia-double-buttons {
  margin-top: 30px;
  text-align: center;
  position: relative;
}

#top #wrap_all .avia-double-button, 
#top #wrap_all .avia-double-button {
  background: #000;
  background: rgba(0,0,0,0.4);
  border-color: #fff;
  color: #fff;
  padding-bottom: 11px;
  text-decoration: none;
}


#top .avia-double-button {
  letter-spacing: 1px;
  padding: 13px 20px;
  padding-bottom: 13px;
  text-transform: uppercase;
  font-size: 13px;
  text-align: center;
  min-width: 175px;
  display: inline-block;
  transition: all 0.4s ease-in-out;
  -moz-transition: all 0.4s ease-in-out;
  -webkit-transition: all 0.4s ease-in-out;
  -o-transition: all 0.4s ease-in-out;
  border: 4px solid #fff;
  text-decoration: none;
}


#top .avia-double-button-1 {
  border-top-left-radius: 100px;
  border-bottom-left-radius: 100px;
  border-right-width: 2px;
}

#top .button_or {
  position: absolute;
  display: block;
  height: 26px;
  line-height: 21px;
  width: 40px;
  text-align: center;
  top: 50%;
  left: 50%;
  margin: -13px 0 0 -22px;
  background: #fff;
  color: #666;
  border-radius: 100px;
  font-size: 12px;
  border: 2px solid #FFF;
  font-style: italic;
  font-weight: 600;
  z-index: 11;
}

#top .avia-double-button-2 {
  border-top-right-radius: 100px;
  border-bottom-right-radius: 100px;
  border-left: none;
  border-left-color: currentcolor;
}


#top #wrap_all .main_color .avia-double-button-1:hover, 
#top #wrap_all .main_color .avia-double-button-1:hover {
    background: rgba(0, 100, 190, 0.6);
    color: #fff;
}

#top #wrap_all .main_color  .avia-double-button-2:hover, 
#top #wrap_all .main_color .avia-double-button-2:hover {
    background-color: rgba(200,0,120,0.6);
    color: #fff;
}



@media only screen and (max-width:480px) {
 .responsive #top .avia-double-button {
  width:50%;
  min-width:50%;
  margin:0
 }
}
<span class="avia-double-buttons ">
<a class="avia-double-button avia-double-button-1" href="https://guenterweber.com">Guennis</a>
<span class="button_or">good</span>
<a class="avia-double-button avia-double-button-2" href="https://webers-webdesign.de">Webdesign</a>
</span>