.main_background{
  background-image: url("bg2.jpg");
  background-size: cover;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
}

#banner_pc{
  margin-top: 20vm;
  position: relative;
  padding-top: 5vw;
  display: block;
  
}

#banner_phone{
  display: none;
}

@media only screen and (max-width: 600px)  {
  #banner_pc{
    display: none;
  }
  #banner_phone{
    display: block;
  }
  
}

.btn {
  border: none;
  background-color: inherit;
  padding: 5px 32px;
  font-size: 18px;
  cursor: pointer;
  display: inline-block;
  padding-left: 10vm;
}

/* On mouse-over */
.btn:hover {
  background-color: lightgray;}

.home {color: darkgray; }
.illu {color: dodgerblue; !important;}
.paint {color: orange;}
.designW {color: darkred;}
.draw {color: black;}

hr{
  width:83%;
}

.illustration{
  position: relative;
  width: 55%;
  margin: 20px auto;
  }

.painting{
  position: relative;
  width: 55%;
  margin: 20px auto;
}

.design_work{
  position: relative;
  width: 55%;
  margin: 20px auto;
}

.painting:hover .overlay_p {
  bottom: 0;
  height: 100%;
}
.image {
  display: block;
  width: 90%;
  height: 50%;
}

.overlay {
  position: absolute;
  bottom: 50%;
  background-color: lightskyblue;
  overflow: hidden;
  width: 90%;
  height:0;
  transition: .5s ease;
  margin: 0 auto;
}

.overlay_p {
  position: absolute;
  bottom: 50%;
  background-color: orange;
  overflow: hidden;
  width: 90%;
  height:0;
  transition: .5s ease;
  margin: 0 auto;
}

.overlay_d {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: violet;
  overflow: hidden;
  width: 90%;
  height:100%;
  transform: scale(0);
  transition: .5s ease;
  
}

.illustration:hover .overlay {
  bottom: 0;
  height: 100%;
  margin: 0 auto;
}

.design_work:hover .overlay_d {
  bottom: 0;
  height: 100%;
  transform: scale(1);
}

.text {
  color: white;
  font-size: 25px auto;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}

a{
  color: white;
  }

h1{
  color: lightgray;
  font-family: Helvetica sans-serif;
  font-size: 1.25em;
}