这是一组效果非常酷的鼠标滑过按钮背景动画特效。该特效中,当鼠标滑过按钮时,使用CSS3 animation来动画background-size和background-position属性,来制作各种背景动画效果。
HTML结构
该按钮效果使用标准的<button>组件来制作。
<button class="btn btn-1">Hover me</button>
CSS样式
首先为按钮设置通用样式。将按钮的背景去除,设置2像素的实线边框,并将底部边框设置为4个像素。通过padding来设置按钮的尺寸,并为按钮的文字颜色设置平滑动画过渡效果。
.btn { background: none; border: 2px solid; border-bottom-width: 4px; font: inherit; letter-spacing: inherit; margin: 1em; padding: 1em 2em; text-transform: inherit; -webkit-transition: color 1s; transition: color 1s; }
在第一种按钮背景动画中,按钮的背景使用2个渐变图层来制作。当鼠标滑过按钮时执行halftone帧动画,该动画修改按钮的background-size属性。它缩小了背景图片的尺寸,使所有的圆点连成一片。
.btn-1 { color: #9c89f7; } .btn-1:hover { -webkit-animation: halftone 1s forwards; animation: halftone 1s forwards; background: -webkit-radial-gradient(circle, #9c89f7 0.2em, rgba(0, 0, 0, 0) 0.25em) 0 0/1.25em 1.25em, -webkit-radial-gradient(circle, #9c89f7 0.2em, rgba(0, 0, 0, 0) 0.25em) 6.25em 6.25em/1.25em 1.25em; background: radial-gradient(circle, #9c89f7 0.2em, rgba(0, 0, 0, 0) 0.25em) 0 0/1.25em 1.25em, radial-gradient(circle, #9c89f7 0.2em, rgba(0, 0, 0, 0) 0.25em) 6.25em 6.25em/1.25em 1.25em; color: #e4f789; } @-webkit-keyframes halftone { 100% { background-size: 2.375em 2.375em, 0.1em 0.1em; } } @keyframes halftone { 100% { background-size: 2.375em 2.375em, 0.1em 0.1em; } } .btn-2 { color: #82f6d8; } .btn-2:hover { -webkit-animation: stripes-move 0.75s infinite linear; animation: stripes-move 0.75s infinite linear; background: -webkit-repeating-linear-gradient(45deg, #82f6d8 0, #82f6d8 0.25em, transparent 0.25em, transparent 0.5em); background: repeating-linear-gradient(45deg, #82f6d8 0, #82f6d8 0.25em, transparent 0.25em, transparent 0.5em); color: #f682a0; } @-webkit-keyframes stripes-move { 100% { background-position: 5em 0px; } } @keyframes stripes-move { 100% { background-position: 5em 0px; } } .btn-3 { color: #d3f169; } .btn-3:hover { -webkit-animation: sawtooth 0.35s infinite linear; animation: sawtooth 0.35s infinite linear; background: -webkit-linear-gradient(45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em, -webkit-linear-gradient(135deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em; background: linear-gradient(45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em, linear-gradient(-45deg, #d3f169 0.5em, transparent 0.5em) 0 0/1em 1em; color: #8769f1; } @-webkit-keyframes sawtooth { 100% { background-position: 1em 0; } } @keyframes sawtooth { 100% { background-position: 1em 0; } } .btn-4 { color: #eea163; } .btn-4:hover { -webkit-animation: zigzag 1s linear infinite; animation: zigzag 1s linear infinite; background: -webkit-linear-gradient(315deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, -webkit-linear-gradient(225deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, -webkit-linear-gradient(135deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0, -webkit-linear-gradient(45deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0; background: linear-gradient(135deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, linear-gradient(225deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) -0.5em 0, linear-gradient(315deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0, linear-gradient(45deg, rgba(238, 161, 99, 0.25) 0.25em, transparent 0.25em) 0 0; background-size: 0.75em 0.75em; color: #63b0ee; } @-webkit-keyframes zigzag { 100% { background-position: 1em 0, 1em 0, -0.75em 0 , -0.75em 0; } } @keyframes zigzag { 100% { background-position: 1em 0, 1em 0, -0.75em 0 , -0.75em 0; } } .btn-5 { color: #7cf07f; } .btn-5:hover { -webkit-animation: blinds 0.75s linear forwards; animation: blinds 0.75s linear forwards; background: -webkit-linear-gradient(90deg, #7cf07f 25%, transparent 25%) 0 0/0.5em 0.5em, -webkit-linear-gradient(90deg, #88d6f3 50%, transparent 50%) 0 0/1em 1em; background: linear-gradient(0deg, #7cf07f 25%, transparent 25%) 0 0/0.5em 0.5em, linear-gradient(0deg, #88d6f3 50%, transparent 50%) 0 0/1em 1em; color: #f07ced; } @-webkit-keyframes blinds { 100% { background-position: 0 0, 0 -3em; background-size: 0 0, 1em 6em; } } @keyframes blinds { 100% { background-position: 0 0, 0 -3em; background-size: 0 0, 1em 6em; } } .btn-6 { color: #f9879b; } .btn-6:hover { -webkit-animation: pulse 1s ease-in infinite; animation: pulse 1s ease-in infinite; background: -webkit-radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, rgba(0, 0, 0, 0) 50%) 0 0/1em 1em, -webkit-radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, rgba(0, 0, 0, 0) 50%) 0.5em 0.5em/2em 2em; background: radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, rgba(0, 0, 0, 0) 50%) 0 0/1em 1em, radial-gradient(circle, rgba(249, 135, 155, 0.25) 43%, rgba(0, 0, 0, 0) 50%) 0.5em 0.5em/2em 2em; color: #0bdcb7; } @-webkit-keyframes pulse { 50% { background-position: 0.66em 0.66em, -0.33em -0.33em; } 100% { background-size: 2em 2em, 1em 1em; background-position: -1.5em -1.5em, -1em -1em; } } @keyframes pulse { 50% { background-position: 0.66em 0.66em, -0.33em -0.33em; } 100% { background-size: 2em 2em, 1em 1em; background-position: -1.5em -1.5em, -1em -1em; } }