#front_container{
  width:100%;
}

#front_top{
  display:flex;
}

#main_img{
  width:65%;
  margin-left:0;
  background-image:url("../img/main_1.jpg");
  background-size:cover;
  background-repeat:no-repeat;
  background-position:center;
  padding-bottom:20%;
  position:relative;
  margin-bottom:5%;
}

#main_sentence{
  font-size:0.8vw;
  position:absolute;
  top:50%;
  left:55%;
  transform:translateY(-40%);
  font-family:"TitleFont";
}

#news_block{
  width:50%;
  height:auto;
  margin:auto;
  overflow-y:scroll;
  overflow-x:hidden;
  border:solid 2px;
  border-color:rgba(100,150,200,0.5);
}

.hide_sentence{
  opacity:0;
  transform:translateY(50px);
  transition:opacity 1s ease,transform 1s ease;
}
.show_sentence{
  opacity:1;
  transform:translateY(0);
}

/****************************************/

#first_block,#second_block,#third_block{
  width:80%;
  display:grid;
  margin-top:5%;
  margin-bottom:5%;
}

#first_block,#third_block{
  margin-right:5%;
  margin-left:auto;
}

#second_block{
  margin-left:5%;
  margin-right:auto;
}

.block_title{
  font-family:"TitleFont";
}

#first_block p,#second_block p,#third_block p{
  font-family:"MainFont";
}

#first_block{
  grid-template-columns:70% 30%;
  align-items:strech;
  gap:3%;
}
#first_sentence{
  background:linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(100,150,200,0.25) 50%,rgba(255,255,255,1) 100%);
}
#first_img{
  background:linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(0,0,0,0) 95%,rgba(255,255,255,1) 100%),url("../img/first_img.png");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}

#second_block{
  grid-template-columns:30% 70%;
  align-items:strech;
  gap:3%
}
#second_sentence{
  background:linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(120,250,200,0.25) 50%,rgba(255,255,255,1) 100%);
}
#second_img{
  background:linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(0,0,0,0) 90%,rgba(255,255,255,1) 100%),url("../img/second_img_2.jpg");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}

#third_block{
  grid-template-columns:70% 30%;
  align-items:strech;
  gap:3%;
}
#third_sentence{
  background:linear-gradient(90deg,rgba(255,255,255,1) 0%,rgba(200,150,100,0.25) 50%,rgba(255,255,255,1) 100%);
}
#third_img{
  background:url("../img/sdgs_200.png");
  background-size:contain;
  background-position:center;
  background-repeat:no-repeat;
}

.annotation_word{
  color:red;
}

/****************************************/

@media (max-width:900px){

  #main_img{
    width:100%;
    margin:0;
  }

  #main_sentence{
    font-size:1.1vw;
    background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0.25) 50%,rgba(255,255,255,0) 100%);
    top:50%;
    left:55%;
    transform:translateY(-50%);
  }
/****************************************/

  #first_block,#second_block,#third_block{
    width:90%;
    margin-bottom:10%;
    height:auto;
    display:flex;
    flex-direction:column;
  }
  #first_sentence p,#second_sentence p,#third_sentence p{
    order:1;
  }
  #first_img,#second_img,#third_img{
    order:2;
    width:100%;
    height:30vw;
  }
  #first_sentenc,#second_sentence,#third_sentence{
    margin-bottom:3%;
  }
}