本次繪製的形狀中難點主要有等腰梯形、等腰三角形、圓角等腰三角形

1、電池

效果：

難點： 電池電量100%時凸出來的那部分白色怎麼變成紅色？（即電池正極凸出來的那部分怎麼填充顏色？）
解決： 電量100%時讓顯示電量的紅色div溢位整個電池，並在電池凸出來部分的兩邊分別使用一個白色div蓋住即可。如圖：

未蓋住：　　　

蓋住了：

程式碼實現：

<style>
.dyestuff-battery{
        display: inline-block;
        position: relative;
        width: 98px;
        height: 160px;
        padding-top: 14px;
        overflow: hidden;
    }
    .dyestuff-battery + .dyestuff-battery{
        margin-left: 20px;
    }
    .dyestuff-battery::before{ /* 蓋住電池凸出部分左邊 */
        position: absolute;
        /* top: 1px; */
        top: 0;
        left: 0;
        z-index: 5;
        content: ' ';
        width: 34%;
        height: 14px;
        background-color: #fff;
    }
    .dyestuff-battery::after{ /* 蓋住電池凸出部分右邊 */
        position: absolute;
        /* top: 1px; */
        top: 0;
        right: 0;
        z-index: 5;
        content: ' ';
        width: 34%;
        height: 14px;
        background-color: #fff;
    }
    .dyestuff-battery-outter{
        position: relative;
        height: 100%;
        padding: 8px;
        /* border: 8px solid #D8252B; */
        border-radius: 12px;
        background-color: #D8252B;
    }
    .dyestuff-battery-outter::before{
        position: absolute;
        top: -14px;
        left: 34%;
        content: ' ';
        height: 14px;
        width: 32%;
        border-radius: 4px 4px 0 0;
        background-color: #D8252B;
    }
    .dyestuff-battery-inner{
        position: absolute;
        top: 8px;
        left: 8px;
        bottom: 8px;
        right: 8px;
        display: flex;
        justify-content: center;
        align-items: center;
        border-radius: 10px;
        background-color: #fff;
    }
    .dyestuff-battery-inner::before{
        position: absolute;
        top: -14px;
        left: 39%;
        content: ' ';
        height: 14px;
        width: 22%;
        background-color: #fff;
    }
    .dyestuff-battery-text{
        position: relative;
        z-index: 2;
        font-size: 20px;
    }
    .dyestuff-battery-progress{
        position: absolute;
        width: 100%;
        left: 0;
        bottom: 0;
        height: 0;
        background-color: #D8252B;
    }
</style>

<div>
    <div class="dyestuff-battery">
        <div class="dyestuff-battery-outter">
            <div class="dyestuff-battery-inner">
                <div class="dyestuff-battery-text">0%</div>
                <div class="dyestuff-battery-progress"></div>
            </div>
        </div>
    </div>
    <div class="dyestuff-battery">
        <div class="dyestuff-battery-outter">
            <div class="dyestuff-battery-inner">
                <div class="dyestuff-battery-text">40%</div>
                <div class="dyestuff-battery-progress" style="height: 40%;"></div>
            </div>
        </div>
    </div>
    <div class="dyestuff-battery">
        <div class="dyestuff-battery-outter">
            <div class="dyestuff-battery-inner">
                <div class="dyestuff-battery-text">100%</div>
                <div class="dyestuff-battery-progress" style="height: calc(100% + 14px);"></div>
            </div>
        </div>
    </div>
</div>

2、水彩筆

效果：

難點： 等腰梯形的繪製
解決： 使用clip-path繪製等腰梯形
程式碼實現：

<style>
.dyestuff-watercolor-pen{
        display: inline-block;
        width: 40px;
    }
    .dyestuff-watercolor-pen + .dyestuff-watercolor-pen{
        margin-left: 20px;
    }
    .dyestuff-watercolor-pen .penpoint{
        width: 8px;
        height: 8px;
        border: 1px solid #000;
        border-radius: 50%;
        margin: 0 auto;
        background-color: #D9242D;
    }
    .dyestuff-watercolor-pen .pen-head{ /* 繪製等腰梯形 */
        position: relative;
        height: 21px;
        border: 1px solid #000;
        border-bottom: none;
        margin: 0 5px;
        background-color: #000;
        clip-path: polygon(25% 0%, 75% 0%, 100% 100%, 0% 100%);
    }
    .dyestuff-watercolor-pen .pen-head-inner{
        width: 100%;
        height: 100%;
        background-color: #fff;
        clip-path: polygon(25% 0%, 75% 0%, 100% 100%, 0% 100%);
    }
    .dyestuff-watercolor-pen .pen-body{
        height: 152px;
        border: 1px solid #000;
        background-color: #D9242D;
    }
    .dyestuff-watercolor-pen .pen-cap{
        height: 9px;
        border: 1px solid #000;
        border-top: none;
        margin: -1px 4px 0 4px;
        background-color: #D9242D;
    }
</style>

<div>
    <div class="dyestuff-watercolor-pen">
        <div class="penpoint"></div>
        <div class="pen-head">
            <div class="pen-head-inner"></div>
        </div>
        <div class="pen-body"></div>
        <div class="pen-cap"></div>
    </div>
    
    <div class="dyestuff-watercolor-pen">
        <div class="penpoint" style="background-color: #FFF000;"></div>
        <div class="pen-head">
            <div class="pen-head-inner"></div>
        </div>
        <div class="pen-body" style="background-color: #FFF000;"></div>
        <div class="pen-cap" style="background-color: #FFF000;"></div>
    </div>
</div>

3、鉛筆

效果：

難點： 等腰三角形的繪製
解決： 使用clip-path繪製等腰三角形
程式碼實現：

<style>
.dyestuff-pencil{
        display: inline-block;
        width: 24px;
    }
    .dyestuff-pencil + .dyestuff-pencil{
        margin-left: 20px;
    }
    .dyestuff-pencil .penpoint{
        position: relative;
        height: 46px;
        border: 1px solid #000;
        background-color: #000;
        clip-path: polygon(50% 0, 100% 100%, 0 100%);
    }
    .dyestuff-pencil .penpoint::before{
        position: absolute;
        content: ' ';
        left: 0;
        right: 0;
        top: 10px;
        height: 1px;
        z-index: 2;
        background-color: #000;
    }
    .dyestuff-pencil .penpoint-inner{
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        top: 0;
        background-color: #D92622;
        clip-path: polygon(50% 0, 100% 100%, 0 100%);
    }
    .dyestuff-pencil .pen-body{
        height: 230px;
        border: 1px solid #000;
        border-top: none;
        background-color: #D92622;
    }
</style>

<div>
    <div class="dyestuff-pencil">
        <div class="penpoint">
            <div class="penpoint-inner"></div>
        </div>
        <div class="pen-body"></div>
    </div>
    <div class="dyestuff-pencil">
        <div class="penpoint">
            <div class="penpoint-inner" style="background-color: #FBCC96;"></div>
        </div>
        <div class="pen-body" style="background-color: #FBCC96;"></div>
    </div>
</div>

4、蠟筆

效果：

難點： 圓角等腰三角形的繪製
解決： 使用rotate+skewX繪製
瑕疵 直角與三角相接的地方不能重合，如圖(有更好辦法的大佬麻煩提供下程式碼)：

程式碼實現：

<style>
.dyestuff-crayon{
        display: inline-block;
        width: 24px;
    }
    .dyestuff-crayon + .dyestuff-crayon{
        margin-left: 20px;
    }
    .dyestuff-crayon .penpoint{
        height: 24px;
        border: 1px solid #000;
        border-right: none;
        border-bottom: none;
        transform: rotate(57deg) skewX(20deg);
        border-top-left-radius: 6px;
        margin-bottom: -12px;
        background-color: #D92622;
    }
    .dyestuff-crayon .pen-body{
        height: 230px;
        border: 1px solid #000;
        border-top: none;
        margin: 0 -2px;
        background-color: #D92622;
    }
</style>

<div>
    <div class="dyestuff-crayon">
        <div class="penpoint"></div>
        <div class="pen-body"></div>
    </div>
    <div class="dyestuff-crayon">
        <div class="penpoint" style="background-color: #00A3DA;"></div>
        <div class="pen-body" style="background-color: #00A3DA;"></div>
    </div>
</div>