复制即生效的样式

紧贴底部的footer(Sticky Footer布局)

body{
    display:flex;
    flex-flow:column;
    min-height:100vh;
}
main{
    flex:1;
}
footer{
    min-height:100px;
}

flex控制布局顺序(模拟圣杯)

main{
    display: flex;
    align-items: stretch;
    width: 100%;
}
.left{
    width:200px;
    order:-1; 
    /* 值越大越靠后 */
}
.middle{
    flex:1;
}
.right{
    width:200px;
}

flex排序自动对齐

.flex-container{
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    /* 设置网格行列之间的间隙 */
    width: 100%;
    min-height: 300px;
    background-color: bisque;
}
.flex-item{
    flex: 0 1 calc((100% - 60px) / 4);
    background-color: yellow;
}

logo自动对齐排列且混合颜色

.brands {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    /* 1fr自动分配剩余空间 */
    grid-gap: 10px;
    list-style-type: none;
}

.brands-item {
    background: #eee;
}

.brands-item a {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.brands-item img {
    width: 80px;
    height: 80px;
    object-fit: contain;
    mix-blend-mode: multiply;
    /* css混合模式 */
}

文字模糊

{
    color: transparent;
    text-shadow: #111 0 0 5px;
}

动态宽度

.tag{
    width: clamp(100px, 50vw, 500px);
}
/* 类似于
    * min-width:100px;
    * width:50vw;
    * max-width:500px;
*/

网页中编辑css

<style style="display:block" contentEditable>
    body { color: blue }
</style>