increse width with fade animation on hover css code example

Example 1: how to make a button grow in css

.grow { transition: all .2s ease-in-out; }
.grow:hover { transform: scale(1.1); }

Example 2: css hover animation

.YOURHTMLCONTENT i {
    height: auto;
    float: left;
    color: #fff;
    font-size: 55px;
    margin: 30px 30px 30px 30px;
    transition: 0.8s;
    transition-property: color, transform;
}

.YOURHTMLCONTENT i:hover {
    color: #FF5733;
    transform: scale(1.3);
}