「BAIYU爱摸鱼」

<input class="custom-input" type="text" placeholder="我就来试一下" />

<style> .custom-input {

 width: 300px;
 height: 40px;
 border: 2px solid #ccc;
 border-radius: 5px;
 padding: 10px;
 font-size: 16px;
 outline: none;
 transition: border-color 0.3s ease-in-out;

}

.custom-input:focus {

 border-color: #59c0e4;

} </style>