我在我的方框中使用虚线样式的边框

.box {
    width: 300px;
    height: 200px;
    border: dotted 1px #f00;
    float: left;
}

我想增加边界上每个点之间的空间。


当前回答

在我的情况下,我需要弯曲的角和薄边界,所以我想出了这个解决方案:

/* For showing dependencies between attributes */ :root { --border-width: 1px; --border-radius: 4px; --bg-color: #fff; } /* Required: */ .dropzone { position: relative; border: var(--border-width) solid transparent; border-radius: var(--border-radius); background-clip: padding-box; background-color: var(--bg-color); } .dropzone::before { content: ''; position: absolute; top: calc(var(--border-width) * -1); /* or without variables: 'top: -1px;' */ right: calc(var(--border-width) * -1); bottom: calc(var(--border-width) * -1); left: calc(var(--border-width) * -1); z-index: -1; background-image: repeating-linear-gradient(135deg, transparent 0 8px, var(--bg-color) 8px 16px); border-radius: var(--border-radius); background-color: rgba(0, 0, 0, 0.38); } /* Optional: */ html { background-color: #fafafb; display: flex; justify-content: center; } .dropzone { box-sizing: border-box; height: 168px; padding: 16px; display: flex; align-items: center; justify-content: center; cursor: pointer; } .dropzone::before { transition: background-color 0.2s ease-in-out; } .dropzone:hover::before { background-color: rgba(0, 0, 0, 0.87); } <div class='dropzone'> Drag 'n' drop some files here, or click to select files </div>

其思想是将svg模式放在元素后面,并仅显示该模式的细线作为元素边界。

其他回答

基于@Eagorajose的答案,用速记语法构建4个边的解决方案:

background: linear-gradient(to right, #000 33%, #fff 0%) top/10px 1px repeat-x, /* top */
linear-gradient(#000 33%, #fff 0%) right/1px 10px repeat-y, /* right */
linear-gradient(to right, #000 33%, #fff 0%) bottom/10px 1px repeat-x, /* bottom */
linear-gradient(#000 33%, #fff 0%) left/1px 10px repeat-y; /* left */

#{页 背景:线性渐变(向右,#000 33%,#fff 0%) top/10px 1px repeat-x, /* top */ 线性渐变(#000 33%,#fff 0%)右/1px 10px重复-y, /*右*/ 线性渐变(向右,#000 33%,#fff 0%)底部/10px 1px重复-x, /*底部*/ 线性渐变(#000 33%,#fff 0%) left/1px 10px repeat-y;/* left */ 宽度:100 px; 身高:100 px; } < div id = "页面" > < / div >

我做了一个javascript函数,用svg创建点。你可以在javascript代码中调整点间距和大小。

var make_dotted_borders = function() { // EDIT THESE SETTINGS: var spacing = 8; var dot_width = 2; var dot_height = 2; //--------------------- var dotteds = document.getElementsByClassName("dotted"); for (var i = 0; i < dotteds.length; i++) { var width = dotteds[i].clientWidth + 1.5; var height = dotteds[i].clientHeight; var horizontal_count = Math.floor(width / spacing); var h_spacing_percent = 100 / horizontal_count; var h_subtraction_percent = ((dot_width / 2) / width) * 100; var vertical_count = Math.floor(height / spacing); var v_spacing_percent = 100 / vertical_count; var v_subtraction_percent = ((dot_height / 2) / height) * 100; var dot_container = document.createElement("div"); dot_container.classList.add("dot_container"); dot_container.style.display = getComputedStyle(dotteds[i], null).display; var clone = dotteds[i].cloneNode(true); dotteds[i].parentElement.replaceChild(dot_container, dotteds[i]); dot_container.appendChild(clone); for (var x = 0; x < horizontal_count; x++) { // The Top Dots var dot = document.createElement("div"); dot.classList.add("dot"); dot.style.width = dot_width + "px"; dot.style.height = dot_height + "px"; var left_percent = (h_spacing_percent * x) - h_subtraction_percent; dot.style.left = left_percent + "%"; dot.style.top = (-dot_height / 2) + "px"; dot_container.appendChild(dot); // The Bottom Dots var dot = document.createElement("div"); dot.classList.add("dot"); dot.style.width = dot_width + "px"; dot.style.height = dot_height + "px"; dot.style.left = (h_spacing_percent * x) - h_subtraction_percent + "%"; dot.style.top = height - (dot_height / 2) + "px"; dot_container.appendChild(dot); } for (var y = 1; y < vertical_count; y++) { // The Left Dots: var dot = document.createElement("div"); dot.classList.add("dot"); dot.style.width = dot_width + "px"; dot.style.height = dot_height + "px"; dot.style.left = (-dot_width / 2) + "px"; dot.style.top = (v_spacing_percent * y) - v_subtraction_percent + "%"; dot_container.appendChild(dot); } for (var y = 0; y < vertical_count + 1; y++) { // The Right Dots: var dot = document.createElement("div"); dot.classList.add("dot"); dot.style.width = dot_width + "px"; dot.style.height = dot_height + "px"; dot.style.left = width - (dot_width / 2) + "px"; if (y < vertical_count) { dot.style.top = (v_spacing_percent * y) - v_subtraction_percent + "%"; } else { dot.style.top = height - (dot_height / 2) + "px"; } dot_container.appendChild(dot); } } } make_dotted_borders(); div.dotted { display: inline-block; padding: 0.5em; } div.dot_container { position: relative; margin-left: 0.25em; margin-right: 0.25em; } div.dot { position: absolute; content: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" height="100" width="100"><circle cx="50" cy="50" r="50" fill="black" /></svg>'); } <div class="dotted">Lorem Ipsum</div>

下面是一个只使用CSS的解决方案,使用剪辑路径来掩盖多余的边界。与投票最多的答案不同,这个答案允许透明的背景。您还可以通过将剪辑路径圆形属性匹配到border-radius来使用get圆角边框。

.demo { 显示:inline-flex; 宽度:200 px; 身高:100 px; 位置:相对; 剪辑路径:插入(0圆30px 0 30px 0); } {前.demo:: 内容:”; 位置:绝对的; 左:7 px; 上图:7 px; 右:7 px; 底部:7 px; 边框:8px虚线rgba(0,0,255, 0.3); 边框半径:37px 0 37px 0; box-sizing: border-box; } < div class = "演示" > < / div >

这里有一个sass mixin给感兴趣的人

=dashed-border($size: 5px, $thickness: 1px, $color: black, $round: 0px)
    
    $corners: ''
    
    @for $i from 1 through length($round)
        $value: nth($round, $i)
        @if $value != 0
            $corners: unquote($corners + calc(#{$value} - #{$size}) + ' ')
        @else
            $corners: unquote($corners + #{$value} + ' ')
    
    clip-path: inset(0 round $corners)
    
    &::before
        content: ''
        position: absolute
        left: - $size + $thickness
        top: - $size + $thickness
        right: - $size + $thickness
        bottom: - $size + $thickness
        border: $size dashed $color
        border-radius: $round
        box-sizing: border-box
<div style="width: 100%; height: 100vh; max-height: 20px; max-width: 100%; background: url('https://kajabi-storefronts-production.global.ssl.fastly.net/kajabi-storefronts-production/themes/853636/settings_images/Ei2yf3t7TvyRpFaLQZiX_dot.jpg') #000; background-repeat: repeat;">&nbsp;</div>

这就是我所做的——使用图像 在这里输入图像描述

你可以创建一个画布(通过javascript)并在里面画一条虚线。在画布内,您可以控制多长破折号和之间的空间应该。