header {
    position: relative;
    /* background-color: #3f51b5; */
    /* height: 150px; */
    box-shadow: 0 2px 5px rgba(0,0,0,0.26);
}

.add-button {
  position: absolute;
  right: 100px;
  bottom: -28px;
  width: 56px;
  height: 56px;
  overflow: visible;
  -webkit-transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
    color 0s ease .4s,font-size .2s;
  -moz-transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
    color 0s ease .4s,font-size .2s;
  transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
    color 0s ease .4s,font-size .2s;
  text-align: center;
  line-height: 56px;
  font-size: 28px;
  color: rgba(255,255,255,1);
}

.add-button:before {
  position: relative;
  z-index: 100;
  content:"+";
  
}



.add-button:hover {
 
  color: rgba(255,255,255,0);
  transform: rotate(45deg);
}

.sub-button {
  position: absolute;
  display: inline-block;
  background-color:#ff4081;
  color: rgba(255,255,255,0);
  width: 28px;
  height: 28px;
  line-height:48px;
  font-family: "FontAwesome";
  font-size: 12px;
  -webkit-transition: top .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    left .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    bottom .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    right .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    width .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    height .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    transform .1s ease 0s,
    border-radius .2s  ease .2s;
   -moz-transition: top .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    left .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    bottom .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    right .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    width .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    height .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    transform .1s ease 0s,
    border-radius .2s  ease .2s;
   transition: top .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    left .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    bottom .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    right .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    width .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    height .2s cubic-bezier(.58,-0.37,.45,1.46) .2s,
    transform .1s ease 0s,
    border-radius .2s  ease .2s;
}

.tl {
  top: 0;
  left: 0;
  border-radius: 28px 0 0 0;
}

.tr {  
  top: 0;
  right: 0;
  border-radius: 0 28px 0 0;
}

.bl {
  bottom: 0;
  left: 0; 
  border-radius: 0 0 0 28px;
}

.br { 
  bottom: 0;
  right: 0;
  border-radius: 0 0 28px 0;
}


.tl:before {
  content:"";
}

.tr:before {
  content:"";
}

.bl:before {
  content:"";
}

.br:before {
  content:"";
}


.add-button:hover .sub-button {
  width: 48px;
  height: 48px;
  transform: rotate(-45deg);
  
  color: rgba(255,255,255,1);
  -webkit-transition: top .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    left .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    bottom .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    right .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    width .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    height .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    color .3s ease .8s,
    transform .3s ease .8s,
    border-radius .4s  ease .6s;
   -moz-transition: top .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    left .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    bottom .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    right .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    width .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    height .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    color .3s ease .8s,
    transform .3s ease .8s,
    border-radius .4s  ease .6s;
   transition: top .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    left .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    bottom .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    right .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    width .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    height .4s cubic-bezier(.58,-0.37,.45,1.46) .4s,
    color .3s ease .8s,
    transform .3s ease .8s,
    border-radius .4s  ease .6s;
}

.add-button:hover .tl {
  top: -25px;
  left: -25px;
  border-radius: 28px;
}

.add-button:hover .tr {  
  top: -25px;
  right: -25px;
  border-radius: 28px;
}

.add-button:hover .bl {
  bottom: -25px;
  left: -25px; 
  border-radius: 28px;
}

.add-button:hover .br { 
  bottom: -25px;
  right: -25px;
  border-radius: 28px;
}

.add-button {
    position: absolute;
    bottom: -28px;
    width: 56px;
    height: 56px;
    overflow: visible;
    -webkit-transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
 color 0s ease .4s,font-size .2s;
    -moz-transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
 color 0s ease .4s,font-size .2s;
    transition: transform .4s cubic-bezier(.58,-0.37,.45,1.46),
 color 0s ease .4s,font-size .2s;
    text-align: center;
    line-height: 56px;
    font-size: 28px;
    color: rgba(255,255,255,1);
    left: 50%;
    right: 50%;
    top: 50%;
    /* bottom: 56%; */
}