Shopifyでスクロールダウンを作ろう！

はじめまして！
ShopifyをメインとしたWeb制作者、Ryo(@owl__goat)と申します。
今回は画像バナーセクションにスクロールダウンを制作していきます。

実際のサイトは以下URLにパスワードをコピーし、ご覧ください。

URL: https://gracialuxe.myshopify.com/
pass: giecre

image-banner.liquidにスクロールダウンを追加

オンラインストア→テーマ→カスタマイズの横にある「・・・」→「コードを編集」にてコード編集画面に移動します。
1,セクションファイルの中にある「image-banner.liquid」を開きます
2,.banner__contentのクラス名を付与されたdivタグの閉じタグ上に以下のコードを追加

     {% if section.settings.scroll-down == true %}
      <div class="scrolldown">
        <span>Scroll</span>
      </div>
     {%- endif -%}

2,元々作成されていた｛%- style -%｝の閉じタグの下に以下のコードを追加(配置位置に関して)はご自由に変更ください。

{%- style -%}
  #Banner-{{ section.id }}::after {
    opacity: {{ section.settings.image_overlay_opacity | divided_by: 100.0 }};
  }
  .scrolldown{
  position:absolute;
  bottom:10px;
  left:20px;
}
  .scrolldown span{
  position: absolute;
  left:10px;
  bottom:10px;
  color: #eee;
  font-size: 1.3rem;
    font-weight:bold;
  letter-spacing: 0.05em;
  -ms-writing-mode: tb-rl;
    -webkit-writing-mode: vertical-rl;
    writing-mode: vertical-rl;
}
  .scrolldown:before {
    content: "";
    position: absolute;
    bottom:0;
    left:-4px;
  width:10px;
  height:10px;
  border-radius: 50%;
  background:#eee;
  animation:
    circlemove 1.6s ease-in-out infinite,
    cirlemovehide 1.6s ease-out infinite;
}
@keyframes circlemove{
      0%{bottom:45px;}
     100%{bottom:-5px;}
 }

@keyframes cirlemovehide{
      0%{opacity:0}
     50%{opacity:1;}
    80%{opacity:0.9;}
  100%{opacity:0;}
 }

.scrolldown:after{
  content:"";
  position: absolute;
  bottom:0;
  left:0;
  width:2px;
  height: 50px;
  background:#eee;
}

{%- endstyle -%}

schemeタグの中にカスタマイズ画面からスクロールダウンを追加するかどうか選べるように以下のコードを追加。

    {
     "type": "checkbox",
     "id": "scroll-down",
     "default": false,
     "label": "スクロールダウン"
},

※初期値をfalseにしているため確認する際はスクロールダウン項目にチェックしてください。

以上で完成です！！
全コードも書いておりますので配置場所などわからない場所がありましたらこちらからご確認ください。

{{ 'section-image-banner.css' | asset_url | stylesheet_tag }}

{%- if section.settings.image_height == 'adapt' and section.settings.image != blank -%}
  {%- style -%}
    @media screen and (max-width: 749px) {
      #Banner-{{ section.id }}::before,
      #Banner-{{ section.id }} .banner__media::before,
      #Banner-{{ section.id }}:not(.banner--mobile-bottom) .banner__content::before {
        padding-bottom: {{ 1 | divided_by: section.settings.image.aspect_ratio | times: 100 }}%;
        content: '';
        display: block;
      }
    }

    @media screen and (min-width: 750px) {
      #Banner-{{ section.id }}::before,
      #Banner-{{ section.id }} .banner__media::before {
        padding-bottom: {{ 1 | divided_by: section.settings.image.aspect_ratio | times: 100 }}%;
        content: '';
        display: block;
      }
    }
  {%- endstyle -%}
{%- endif -%}

{%- style -%}
  #Banner-{{ section.id }}::after {
    opacity: {{ section.settings.image_overlay_opacity | divided_by: 100.0 }};
  }
  .scrolldown{
  position:absolute;
  bottom:10px;
  left:20px;
}
  .scrolldown span{
    /*描画位置*/
  position: absolute;
  left:10px;
  bottom:10px;
    /*テキストの形状*/
  color: #eee;
  font-size: 1.3rem;
    font-weight:bold;
  letter-spacing: 0.05em;
  /*縦書き設定*/
  -ms-writing-mode: tb-rl;
    -webkit-writing-mode: vertical-rl;
    writing-mode: vertical-rl;
}
  .scrolldown:before {
    content: "";
    /*描画位置*/
    position: absolute;
    bottom:0;
    left:-4px;
    /*丸の形状*/
  width:10px;
  height:10px;
  border-radius: 50%;
  background:#eee;
    /*丸の動き1.6秒かけて透過し、永遠にループ*/
  animation:
    circlemove 1.6s ease-in-out infinite,
    cirlemovehide 1.6s ease-out infinite;
}
  /*下からの距離が変化して丸の全体が上から下に動く*/
@keyframes circlemove{
      0%{bottom:45px;}
     100%{bottom:-5px;}
 }

/*上から下にかけて丸が透過→不透明→透過する*/
@keyframes cirlemovehide{
      0%{opacity:0}
     50%{opacity:1;}
    80%{opacity:0.9;}
  100%{opacity:0;}
 }

/* 線の描写 */
.scrolldown:after{
  content:"";
    /*描画位置*/
  position: absolute;
  bottom:0;
  left:0;
    /*線の形状*/
  width:2px;
  height: 50px;
  background:#eee;
}

{%- endstyle -%}

{%- liquid
  assign full_width = '100vw'
  assign widths = '375, 550, 750, 1100, 1500, 1780, 2000, 3000, 3840'

  if section.settings.image_behavior == 'ambient'
    assign half_width = '60vw'
    assign full_width = '120vw'
    assign stacked_sizes = '(min-width: 750px) 60vw, 120vw'
    assign widths = '450, 660, 900, 1320, 1800, 2136, 2400, 3600, 7680'
  elsif section.settings.image_behavior == 'fixed' or section.settings.image_behavior == 'zoom-in'
    assign half_width = '100vw'
    assign stacked_sizes = '100vw'
  else
    assign half_width = '50vw'
    assign stacked_sizes = '(min-width: 750px) 50vw, 100vw'
  endif
-%}

<div
  id="Banner-{{ section.id }}"
  class="banner banner--content-align-{{ section.settings.desktop_content_alignment }} banner--content-align-mobile-{{ section.settings.mobile_content_alignment }} banner--{{ section.settings.image_height }}{% if section.settings.stack_images_on_mobile and section.settings.image != blank and section.settings.image_2 != blank %} banner--stacked{% endif %}{% if section.settings.image_height == 'adapt' and section.settings.image != blank %} banner--adapt{% endif %}{% if section.settings.show_text_below %} banner--mobile-bottom{%- endif -%}{% if section.settings.show_text_box == false %} banner--desktop-transparent{% endif %}{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--fade-in{% endif %}"
>
  {%- if section.settings.image != blank -%}
    <div class="banner__media media{% if section.settings.image == blank and section.settings.image_2 == blank %} placeholder{% endif %}{% if section.settings.image_2 != blank %} banner__media-half{% endif %}{% if section.settings.image_behavior != 'none' %} animate--{{ section.settings.image_behavior }}{% endif %}{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--fade-in{% endif %}">
      {%- liquid
        assign image_height = section.settings.image.width | divided_by: section.settings.image.aspect_ratio
        if section.settings.image_2 != blank
          assign image_class = 'banner__media-image-half'
        endif
        if section.settings.image_2 != blank and section.settings.stack_images_on_mobile
          assign sizes = stacked_sizes
        elsif section.settings.image_2 != blank
          assign sizes = half_width
        else
          assign sizes = full_width
        endif
      -%}
      {{
        section.settings.image
        | image_url: width: 3840
        | image_tag:
          loading: 'lazy',
          width: section.settings.image.width,
          height: image_height,
          class: image_class,
          sizes: sizes,
          widths: widths
      }}
    </div>
  {%- elsif section.settings.image_2 == blank -%}
    <div class="banner__media media{% if section.settings.image == blank and section.settings.image_2 == blank %} placeholder{% endif %}{% if section.settings.image_2 != blank %} banner__media-half{% endif %}{% if section.settings.image_behavior != 'none' %} animate--{{ section.settings.image_behavior }}{% endif %}{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--fade-in{% endif %}">
      {{ 'hero-apparel-1' | placeholder_svg_tag: 'placeholder-svg' }}
    </div>
  {%- endif -%}
  {%- if section.settings.image_2 != blank -%}
    <div class="banner__media media{% if section.settings.image != blank %} banner__media-half{% endif %}{% if section.settings.image_behavior != 'none' %} animate--{{ section.settings.image_behavior }}{% endif %}{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--fade-in{% endif %}">
      {%- liquid
        assign image_height_2 = section.settings.image_2.width | divided_by: section.settings.image_2.aspect_ratio
        if section.settings.image != blank
          assign image_class_2 = 'banner__media-image-half'
        endif
        if section.settings.image != blank and section.settings.stack_images_on_mobile
          assign sizes = stacked_sizes
        elsif section.settings.image_2 != blank
          assign sizes = half_width
        else
          assign sizes = full_width
        endif
      -%}
      {{
        section.settings.image_2
        | image_url: width: 3840
        | image_tag:
          loading: 'lazy',
          width: section.settings.image_2.width,
          height: image_height_2,
          class: image_class_2,
          sizes: sizes,
          widths: widths
      }}
    </div>
  {%- endif -%}
  <div class="banner__content banner__content--{{ section.settings.desktop_content_position }} page-width{% if settings.animations_reveal_on_scroll %} scroll-trigger animate--slide-in{% endif %}">
    <div class="banner__box content-container content-container--full-width-mobile color-{{ section.settings.color_scheme }} gradient">
      {%- for block in section.blocks -%}
        {%- case block.type -%}
          {%- when 'heading' -%}
            <h2
              class="banner__heading inline-richtext {{ block.settings.heading_size }}"
              {{ block.shopify_attributes }}
            >
              {{ block.settings.heading }}
            </h2>
          {%- when 'text' -%}
            <div class="banner__text rte {{ block.settings.text_style }}" {{ block.shopify_attributes }}>
              <p>{{ block.settings.text }}</p>
            </div>
          {%- when 'buttons' -%}
            <div
              class="banner__buttons{% if block.settings.button_label_1 != blank and block.settings.button_label_2 != blank %} banner__buttons--multiple{% endif %}"
              {{ block.shopify_attributes }}
            >
              {%- if block.settings.button_label_1 != blank -%}
                <a
                  {% if block.settings.button_link_1 == blank %}
                    role="link" aria-disabled="true"
                  {% else %}
                    href="{{ block.settings.button_link_1 }}"
                  {% endif %}
                  class="button{% if block.settings.button_style_secondary_1 %} button--secondary{% else %} button--primary{% endif %}"
                >
                  {{- block.settings.button_label_1 | escape -}}
                </a>
              {%- endif -%}
              {%- if block.settings.button_label_2 != blank -%}
                <a
                  {% if block.settings.button_link_2 == blank %}
                    role="link" aria-disabled="true"
                  {% else %}
                    href="{{ block.settings.button_link_2 }}"
                  {% endif %}
                  class="button{% if block.settings.button_style_secondary_2 %} button--secondary{% else %} button--primary{% endif %}"
                >
                  {{- block.settings.button_label_2 | escape -}}
                </a>
              {%- endif -%}
   
            </div>
        {%- endcase -%}
      {%- endfor -%}
            
    </div>
     {% if section.settings.scroll-down == true %}
             <div class="scrolldown"><span>Scroll</span></div>
                    {%- endif -%}
  </div>
</div>

{% schema %}
{
  "name": "t:sections.image-banner.name",
  "tag": "section",
  "class": "section",
  "disabled_on": {
    "groups": ["header", "footer"]
  },
  "settings": [
    {
      "type": "image_picker",
      "id": "image",
      "label": "t:sections.image-banner.settings.image.label"
    },
    {
      "type": "image_picker",
      "id": "image_2",
      "label": "t:sections.image-banner.settings.image_2.label"
    },
    {
      "type": "range",
      "id": "image_overlay_opacity",
      "min": 0,
      "max": 100,
      "step": 10,
      "unit": "%",
      "label": "t:sections.image-banner.settings.image_overlay_opacity.label",
      "default": 0
    },
    {
      "type": "select",
      "id": "image_height",
      "options": [
        {
          "value": "adapt",
          "label": "t:sections.image-banner.settings.image_height.options__1.label"
        },
        {
          "value": "small",
          "label": "t:sections.image-banner.settings.image_height.options__2.label"
        },
        {
          "value": "medium",
          "label": "t:sections.image-banner.settings.image_height.options__3.label"
        },
        {
          "value": "large",
          "label": "t:sections.image-banner.settings.image_height.options__4.label"
        }
      ],
      "default": "medium",
      "label": "t:sections.image-banner.settings.image_height.label",
      "info": "t:sections.image-banner.settings.image_height.info"
    },
    {
      "type": "select",
      "id": "desktop_content_position",
      "options": [
        {
          "value": "top-left",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__1.label"
        },
        {
          "value": "top-center",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__2.label"
        },
        {
          "value": "top-right",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__3.label"
        },
        {
          "value": "middle-left",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__4.label"
        },
        {
          "value": "middle-center",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__5.label"
        },
        {
          "value": "middle-right",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__6.label"
        },
        {
          "value": "bottom-left",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__7.label"
        },
        {
          "value": "bottom-center",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__8.label"
        },
        {
          "value": "bottom-right",
          "label": "t:sections.image-banner.settings.desktop_content_position.options__9.label"
        }
      ],
      "default": "middle-center",
      "label": "t:sections.image-banner.settings.desktop_content_position.label"
    },
    {
     "type": "checkbox",
     "id": "scroll-down",
     "default": false,
     "label": "スクロールダウン"
},
    {
      "type": "checkbox",
      "id": "show_text_box",
      "default": true,
      "label": "t:sections.image-banner.settings.show_text_box.label"
    },
    {
      "type": "select",
      "id": "desktop_content_alignment",
      "options": [
        {
          "value": "left",
          "label": "t:sections.image-banner.settings.desktop_content_alignment.options__1.label"
        },
        {
          "value": "center",
          "label": "t:sections.image-banner.settings.desktop_content_alignment.options__2.label"
        },
        {
          "value": "right",
          "label": "t:sections.image-banner.settings.desktop_content_alignment.options__3.label"
        }
      ],
      "default": "center",
      "label": "t:sections.image-banner.settings.desktop_content_alignment.label"
    },
    {
      "type": "color_scheme",
      "id": "color_scheme",
      "label": "t:sections.all.colors.label",
      "default": "background-1"
    },
    {
      "type": "header",
      "content": "t:sections.all.animation.content"
    },
    {
      "type": "select",
      "id": "image_behavior",
      "options": [
        {
          "value": "none",
          "label": "t:sections.all.animation.image_behavior.options__1.label"
        },
        {
          "value": "ambient",
          "label": "t:sections.all.animation.image_behavior.options__2.label"
        },
        {
          "value": "fixed",
          "label": "t:sections.all.animation.image_behavior.options__3.label"
        },
        {
          "value": "zoom-in",
          "label": "t:sections.all.animation.image_behavior.options__4.label"
        }
      ],
      "default": "none",
      "label": "t:sections.all.animation.image_behavior.label"
    },
    {
      "type": "header",
      "content": "t:sections.image-banner.settings.mobile.content"
    },
    {
      "type": "select",
      "id": "mobile_content_alignment",
      "options": [
        {
          "value": "left",
          "label": "t:sections.image-banner.settings.mobile_content_alignment.options__1.label"
        },
        {
          "value": "center",
          "label": "t:sections.image-banner.settings.mobile_content_alignment.options__2.label"
        },
        {
          "value": "right",
          "label": "t:sections.image-banner.settings.mobile_content_alignment.options__3.label"
        }
      ],
      "default": "center",
      "label": "t:sections.image-banner.settings.mobile_content_alignment.label"
    },
    {
      "type": "checkbox",
      "id": "stack_images_on_mobile",
      "default": true,
      "label": "t:sections.image-banner.settings.stack_images_on_mobile.label"
    },
    {
      "type": "checkbox",
      "id": "show_text_below",
      "default": true,
      "label": "t:sections.image-banner.settings.show_text_below.label"
    }
  ],
  "blocks": [
    {
      "type": "heading",
      "name": "t:sections.image-banner.blocks.heading.name",
      "limit": 1,
      "settings": [
        {
          "type": "inline_richtext",
          "id": "heading",
          "default": "Image banner",
          "label": "t:sections.image-banner.blocks.heading.settings.heading.label"
        },
        {
          "type": "select",
          "id": "heading_size",
          "options": [
            {
              "value": "h2",
              "label": "t:sections.all.heading_size.options__1.label"
            },
            {
              "value": "h1",
              "label": "t:sections.all.heading_size.options__2.label"
            },
            {
              "value": "h0",
              "label": "t:sections.all.heading_size.options__3.label"
            }
          ],
          "default": "h1",
          "label": "t:sections.all.heading_size.label"
        }
      ]
    },
    {
      "type": "text",
      "name": "t:sections.image-banner.blocks.text.name",
      "limit": 1,
      "settings": [
        {
          "type": "inline_richtext",
          "id": "text",
          "default": "Give customers details about the banner image(s) or content on the template.",
          "label": "t:sections.image-banner.blocks.text.settings.text.label"
        },
        {
          "type": "select",
          "id": "text_style",
          "options": [
            {
              "value": "body",
              "label": "t:sections.image-banner.blocks.text.settings.text_style.options__1.label"
            },
            {
              "value": "subtitle",
              "label": "t:sections.image-banner.blocks.text.settings.text_style.options__2.label"
            },
            {
              "value": "caption-with-letter-spacing",
              "label": "t:sections.image-banner.blocks.text.settings.text_style.options__3.label"
            }
          ],
          "default": "body",
          "label": "t:sections.image-banner.blocks.text.settings.text_style.label"
        }
      ]
    },
    {
      "type": "buttons",
      "name": "t:sections.image-banner.blocks.buttons.name",
      "limit": 1,
      "settings": [
        {
          "type": "text",
          "id": "button_label_1",
          "default": "Button label",
          "label": "t:sections.image-banner.blocks.buttons.settings.button_label_1.label",
          "info": "t:sections.image-banner.blocks.buttons.settings.button_label_1.info"
        },
        {
          "type": "url",
          "id": "button_link_1",
          "label": "t:sections.image-banner.blocks.buttons.settings.button_link_1.label"
        },
        {
          "type": "checkbox",
          "id": "button_style_secondary_1",
          "default": false,
          "label": "t:sections.image-banner.blocks.buttons.settings.button_style_secondary_1.label"
        },
        {
          "type": "text",
          "id": "button_label_2",
          "default": "Button label",
          "label": "t:sections.image-banner.blocks.buttons.settings.button_label_2.label",
          "info": "t:sections.image-banner.blocks.buttons.settings.button_label_2.info"
        },
        {
          "type": "url",
          "id": "button_link_2",
          "label": "t:sections.image-banner.blocks.buttons.settings.button_link_2.label"
        },
        {
          "type": "checkbox",
          "id": "button_style_secondary_2",
          "default": false,
          "label": "t:sections.image-banner.blocks.buttons.settings.button_style_secondary_2.label"
        }
      ]
    }
  ],
  "presets": [
    {
      "name": "t:sections.image-banner.presets.name",
      "blocks": [
        {
          "type": "heading"
        },
        {
          "type": "text"
        },
        {
          "type": "buttons"
        }
      ]
    }
  ]
}
{% endschema %}