CSS

//css

父级 background:#fff -webkit-background-clip: text; color: transparent; 子元素 文字会裁剪父元素透明

文字的边框 text-shadow: 1px 1px black, -1px -1px black, 1px -1px black, -1px 1px black;

文字镂空 背景反色 .header{ background: #000; color: #fff; mix-blend-mode: difference; } .header{ background: #fff; color: #000; mix-blend-mode: screen; } mix-blend-mode:multiply

公共css

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
    cursor: pointer;
}

input {
    outline: none;
}

ul,
ol {
    list-style: none;
}

/* diy */
.full-screen {
    width: 100%;
    height: 100%;
}

/* flex */
.flexCS {
    display: flex;
    justify-content: center;
    align-items: start;
}

.flexCC,
.flexC {
    display: flex;
    justify-content: center;
    align-items: center;
}

.flexCE {
    display: flex;
    justify-content: center;
    align-items: end;
}

.flexBS {
    display: flex;
    justify-content: space-between;
    align-items: start;
}

.flexBC,
.flexB {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flexBE {
    display: flex;
    justify-content: space-between;
    align-items: end;
}

.flexAS {
    display: flex;
    justify-content: space-around;
    align-items: start;
}

.flexAC,
.flexA {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.flexAE {
    display: flex;
    justify-content: space-around;
    align-items: end;
}

.flexLS {
    display: flex;
    flex-direction: row;
    align-items: start;
}

.flexLC,
.flexL {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.flexLE {
    display: flex;
    flex-direction: row;
    align-items: end;
}

.flexUP {
    display: flex;
    flex-direction: column;
}

.flexW {
    display: flex;
    flex-wrap: wrap;
}

/* 上下左右居中 */
.absoC {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* 点击手 */
.handon {
    cursor: pointer;
}

/* 溢出省略号 */
.overell {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}