[해피CGI][cgimall] 텍스트 입력시 버튼이 나오는 효과

 

HTML 구조

 

 

CSS 소스

//Vars 

:root {

  --rad: .7rem;

  --dur: .3s;

  --color-dark: #2f2f2f;

  --color-light: #fff;

  --color-brand: #57bd84;

  --font-fam: 'Lato', sans-serif;

  --height: 5rem;

  --btn-width: 6rem;

  --bez: cubic-bezier(0, 0, 0.43, 1.49);

}

 

// Setup

body {background: var(--color-dark); display: flex; align-items: center; justify-content: center; min-height: 100vh }

html { box-sizing: border-box; height: 100%; font-size: 10px; } *, *::before, *::after { box-sizing: inherit; }

 

// Main styles

form {

  position: relative;

  width: 30rem;

  background: var(--color-brand);

  border-radius: var(--rad);

}

input, button {

  height: var(--height);

  font-family: var(--font-fam);

  border: 0;

  color: var(--color-dark);

  font-size: 1.8rem;

}

input[type="search"] {

  outline: 0; // <-- shold probably remove this for better accessibility, adding for demo aesthetics for now.

  width: 100%;

  background: var(--color-light);

  padding: 0 1.6rem;

  border-radius: var(--rad);

  appearance: none; //for iOS input[type="search"] roundedness issue. border-radius alone doesn't work

  transition: all var(--dur) var(--bez);

  transition-property: width, border-radius;

  z-index: 1;

  position: relative;

}

button {

  display: none; // prevent being able to tab to it

  position: absolute;

  top: 0;

  right: 0;

  width: var(--btn-width);

  font-weight: bold;

  background: var(--color-brand);

  border-radius: 0 var(--rad) var(--rad) 0;

}

input:not(:placeholder-shown) {

  border-radius: var(--rad) 0 0 var(--rad);

  width: calc(100% - var(--btn-width));

  + button {

    display: block;

  }

}

label {

  position: absolute;

  clip: rect(1px, 1px, 1px, 1px);

  padding: 0;

  border: 0;

  height: 1px;

  width: 1px;

  overflow: hidden;

}