css to realize battery, watercolor pen, pencil, crayon shape

The main difficulties in the shapes drawn this time are isosceles trapezoid, isosceles triangle, rounded isosceles triangle

1. Battery

effect:

Difficulties: battery is 100% charged, how does the white part that protrudes turn red? (That is, how to fill the color of the protruding part of the positive electrode of the battery?)
Solution: power is 100%, let the red div showing the power overflow the entire battery, and use a white div to cover the two sides of the protruding part of the battery. As shown in the figure:

Not covered:


covered:


code implementation:

<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{ /* 盖住电池凸出部分左边 */
        position: absolute;
        /* top: 1px; */
        top: 0;
        left: 0;
        z-index: 5;
        content: ' ';
        width: 34%;
        height: 14px;
        background-color: #fff;
    }
    .dyestuff-battery::after{ /* 盖住电池凸出部分右边 */
        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. Watercolor pen

effect:

Difficulty: isosceles trapezoid
solves: uses clip-path draw an isosceles trapezoid
Code Implementation:

<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{ /* 绘制等腰梯形 */
        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. Pencil

effect:

Difficulty: Isosceles Triangle
solves: uses clip-path draw an isosceles triangle
Code Implementation:

<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. Crayons

effect:

Difficulty: rounded isosceles triangle
solved: using rotate + skewX
defect The place where the right angle and the triangle meet cannot overlap, as shown in the figure (if there is a better way, please provide the following code):


code implementation:

<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>