.f {
  font-family: "Poppins", sans-serif;
}

.f_24px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 24px;
}

.f_18px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 18px;
}

.f_16px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 16px;
}

.f_14px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 14px;
}

.f_12px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 12px;
}

.f_10px_light {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 10px;
}

.f_10px_black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-size: 10px;
}

.f_14px_black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-size: 14px;
}

.f_16px_black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-size: 16px;
}

.f_18px_black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-size: 18px;
}

.f_24px_black {
  font-family: "Poppins", sans-serif;
  font-weight: 900;
  font-size: 24px;
}

@media (max-width: 767px) {
  .hidden-xs {
    display: none !important;
  }
  .visible-xs {
    display: block !important;
  }
}

@media (min-width: 768px) {
  .hidden-md {
    display: none !important;
  }
}

.hidden {
  display: none;
}

.horizontal_center_div {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.center_div {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

.gray_line_1px {
  background-color: #e8e8e8;
  width: 100%;
  height: 1px;
}

.dark_gray_line_1px {
  background-color: #666666;
  width: 100%;
  height: 1px;
}

.tButton {
  background: #3f618c;
  border-radius: 10px;
}

.tButton:hover {
  background: #204675;
  -webkit-box-shadow: 3px 3px 12px 0px rgba(0, 0, 0, 0.38);
  box-shadow: 3px 3px 12px 0px rgba(0, 0, 0, 0.38);
}

.hover_change:hover {
  cursor: pointer;
}

.main_page_h1 {
  font-family: "Poppins", sans-serif;
  font-weight: 100;
  font-size: 48px;
  color: #666666;
  width: 100%;
}

.main_page_h1_mobile {
  font-family: "Poppins", sans-serif;
  font-weight: 100;
  font-size: 32px;
  color: #666666;
  width: 100%;
}

.main_page_h2 {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 36px;
  color: #4d627a;
  width: 100%;
}

.main_page_h2_mobile {
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  font-size: 24px;
  color: #4d627a;
  width: 100%;
}

.thumbnail_box {
  border-radius: 10px;
  width: 100%;
  max-width: 250px;
  height: auto;
}

.thumbnail_image {
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid #808080;
  -o-object-fit: contain;
     object-fit: contain;
  max-width: 100%;
  max-height: 100%;
  width: 100%;
  border-radius: 10px;
  padding: 1px;
  height: auto;
}

.thumbnail_box_text {
  font-family: "Poppins", sans-serif;
  font-weight: 300;
  font-size: 18px;
  text-align: center;
  width: 100%;
  padding-bottom: 5px;
}