Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !-CSS Tutorial-php.cn

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

青灯夜游

Release： 2021-05-07 09:30:38

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This article will introduce to you how to draw a heart using pure CSS. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

Requirements/Function:

How to use CSS HTMl to draw a love.

Analysis:

A heart can be formed by combining a square and two circles. (Learning video sharing: css video tutorial)

1. First draw a square circle and place it as follows:

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

2. Add a circle.

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

3. Finally, rotate the entire shape 45 degrees clockwise.

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

Initial implementation:

1. First draw a square:

<body>
    <div id="heart"></div>
</body>

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#heart{
       height: 300px;
       width: 300px;
       border: 2px solid black;
    }

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2. Add a circle to the left side of the square. Use the pseudo class: before here. Implementation

     #heart{
            height: 200px;
            width: 200px;
            border: 2px solid black;
            position: relative;
        }
    #heart:before{
        content: &#39;&#39;;
        width: 200px;
        height: 200px;
        border: 2px solid black;
        border-radius: 50%; // 正方形加圆角变成圆
        position: absolute;
        left: -100px;  // 向左位移正方形一半的长度
    }

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At this time, the graphic looks like this:

Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

3. Add another circle, which is implemented here using the after pseudo-class.

    #heart{
            height: 200px;
            width: 200px;
            border: 2px solid black;
            position: relative;
        }
        // 这里偷个懒.直接写一块了
    #heart:before,#heart:after{
        content: &#39;&#39;;
        width: 200px;
        height: 200px;
        border: 2px solid black;
        border-radius: 50%;
        position: absolute;
        left: -100px;
    }
    // 第二个圆, 只需要向上位移正方形一半的高度
    #heart:after{
        left: 0;
        top: -100px;
    }

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Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

4. The last step, rotate it, and then add a color. Remove the border added before to see clearly.

    /*给heart进行旋转并加上颜色*/
  transform: rotate(45deg);
  background-color: red;

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Through interesting and vivid pictures, learn how to draw a heart using pure CSS! !

Complete Code:




<body>
    <div id="heart"></div>
</body>

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Summary:

A heart can be composed of a square and two circles. The before and after pseudo-classes are used here. Then, the two pseudo-classes are displaced respectively. Finally, the extrusion By adding color, you can realize a love.

For more programming related knowledge, please visit: Programming Video! !

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