css怎么給div加獲取焦點(diǎn)的那個(gè)框?
<style>div {width:200px; height:50px; border:1px solid #888}div:hover {outline:1px solid #bbf}</style><div>把鼠標(biāo)移到這里來</div>
css怎么給div加獲取焦點(diǎn)的那個(gè)框?
<style>div {width:200px; height:50px; border:1px solid #888}div:hover {outline:1px solid #bbf}</style><div>把鼠標(biāo)移到這里來</div>