console 命令行工具 X clear

console

<div class="split-line"></div>

html {
    -webkit-print-color-adjust: exact;
    -moz-print-color-adjust: exact;
    color-adjust: exact;
}

.split-line {
    width: 300px;
    height: 100px;
    background: linear-gradient(to right top, transparent 49%, #ddd 50%, transparent 51%) #000;
}