Upload Corner Guides
Guide lines appear from a file-input area's corners to clarify the clickable region.
Guide lines appear from a file-input area's corners to clarify the clickable region.
Live Demo
Hover over the element or use Tab to focus.
Source Code
Copy the HTML, CSS or JavaScript you need for your project.
HTML
<div class="tbx-1252"><label class="upload" for="tb-1252-file"><span class="corners" aria-hidden="true"><i></i><i></i><i></i><i></i></span><span class="symbol" aria-hidden="true">↑</span><strong>Attach a file</strong><span class="hint">PDF, JPG or PNG</span><input type="file" id="tb-1252-file" accept=".pdf,image/jpeg,image/png"><span class="assist">Choose file <span aria-hidden="true">↗</span></span></label></div>CSS
.tbx-1252{box-sizing:border-box;display:flex;align-items:center;justify-content:center;width:100%;max-width:100%;min-height:212px;overflow:hidden;padding:16px;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#193647;}
.tbx-1252 *, .tbx-1252 *::before,.tbx-1252 *::after{box-sizing:border-box}
.tbx-1252{background:#e6eff2}.tbx-1252 .upload{position:relative;display:grid;justify-items:center;align-content:center;gap:5px;width:min(100%,278px);min-height:171px;padding:17px;border:2px dashed #aac3cc;border-radius:11px;background:#f7fcfd;color:#345465;text-align:center;cursor:pointer;overflow:hidden;transition:border-color .34s,background .34s}.tbx-1252 .symbol{font-size:25px;color:#5b94aa;transition:transform .35s}.tbx-1252 strong{font-size:16px}.tbx-1252 .hint{font-size:10px;color:#8298a5}.tbx-1252 input{position:absolute;width:1px;height:1px;opacity:0;left:50%;bottom:0}.tbx-1252 .assist{font-size:10px;font-weight:700;color:#4e8a9b}.tbx-1252 .corners i{position:absolute;width:24px;height:24px;border:2px solid #3789a2;opacity:0;transform:scale(.4);transition:opacity .3s,transform .4s}.tbx-1252 .corners i:nth-child(1){top:7px;left:7px;border-right:0;border-bottom:0}.tbx-1252 .corners i:nth-child(2){top:7px;right:7px;border-left:0;border-bottom:0}.tbx-1252 .corners i:nth-child(3){bottom:7px;left:7px;border-right:0;border-top:0}.tbx-1252 .corners i:nth-child(4){bottom:7px;right:7px;border-left:0;border-top:0}.tbx-1252 .upload:is(:hover,:focus-within){border-color:#4a98a7;background:#eaf7fa}.tbx-1252 .upload:is(:hover,:focus-within) .corners i{opacity:1;transform:scale(1)}.tbx-1252 .upload:is(:hover,:focus-within) .symbol{transform:translateY(-5px)}.tbx-1252 .upload:focus-within{outline:3px solid #bb713f;outline-offset:3px}
@media(prefers-reduced-motion:reduce){.tbx-1252 *, .tbx-1252 *::before, .tbx-1252 *::after{{transition-duration:0.01ms!important;animation-duration:0.01ms!important;scroll-behavior:auto!important}}}
How to Use
Insert the HTML and add the CSS to your stylesheet. Adjust colors and sizes and avoid class conflicts.
Use Case
Useful for forms and upload sections.
Technical Notes
Keep controls usable on touch devices. Test keyboard focus and reduced-motion preferences.
Mobile: Ensure the interactive content remains accessible without hover on touch devices.
Browser: Uses modern CSS. Check behavior in the browsers you support.
Reduced Motion: Check that prefers-reduced-motion is respected.
