#block1 {
  position: relative;
  display: inline-block;
  width: 100%;
}
#block1 a {
  position: absolute;
}
#block1 a:nth-of-type(1) {
  left: 6%;
  top: 34%;
  width: 90%;
  height: 15%;
}
#block1 a:nth-of-type(2) {
  left: 6%;
  top: 50%;
  width: 90%;
  height: 14%;
}
#block1 a:hover {
  background: rgba(255,255,255,.3);
}