常用css样式

颜色渐变

颜色渐变菜鸟教程

background-image: linear-gradient(65deg, #3EB0BA 0%, #3692B8 100%);

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修改placeholder样式

input::-webkit-input-placeholder{
    color: #A9A9A9;
    font-size: 14px;
    letter-spacing: 1px;
}
input::-moz-placeholder{
    color: #A9A9A9;
    font-size: 14px;
    letter-spacing: 1px;
}
input::-ms-input-placeholder{
    color: #A9A9A9;
    font-size: 14px;
    letter-spacing: 1px;
}